From sdr at durietz.se  Sat Aug  2 22:30:17 2014
From: sdr at durietz.se (Stefan Du Rietz)
Date: Sat, 02 Aug 2014 22:30:17 +0200
Subject: [Scilab-users] printf bug?
In-Reply-To: <CAORB_+uVKy-e1k3ajU88+fPW+QbK3_WeLH8jzpc1F9Z0CrZrig@mail.gmail.com>
References: <53D7AA5F.6020906@durietz.se>
 <CAORB_+trfR5qHciwOkJK8igNiu_hVaq-b0kFgp=Cj=0H0oDLEw@mail.gmail.com>
 <53D7D4DE.1080005@durietz.se>
 <CAORB_+v356j_DQjkiy++CWT0OADR2+aTJOSsRiELFXedTU6oPw@mail.gmail.com>
 <53D8070A.9070000@durietz.se>
 <CAORB_+uVKy-e1k3ajU88+fPW+QbK3_WeLH8jzpc1F9Z0CrZrig@mail.gmail.com>
Message-ID: <53DD4A59.8070901@durietz.se>

Thank you, Leon,
it confirms that Scilab 5.4.1 handles it correctly.

But when I have LC_NUMERIC="en_DK.utf8" which means decimal comma, see 
below, Scilab is in error:
-->msprintf("%0.2f", %pi)
  ans  =
  3,14
-->msprintf("%0.2f", 3.1416)
  ans  =
  3,14

Compare the correct handling in Python:
 >>> "Pi with two decimals is %0.2f" % 3.1416
'Pi with two decimals is 3.14'

Can any of the developers comment on this, or shall I report a bug?

Regards
Stefan

stefan at Asus1:~$ uname -a
Linux Asus1 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:12 UTC 
2014 i686 i686 i686 GNU/Linux
stefan at Asus1:~$ locale
LANG=en_GB.UTF-8
LANGUAGE=en_GB:en
LC_CTYPE="en_DK.utf8"
LC_NUMERIC="en_DK.utf8"
LC_TIME="en_DK.utf8"
LC_COLLATE="en_DK.utf8"
LC_MONETARY="en_DK.utf8"
LC_MESSAGES="en_DK.utf8"
LC_PAPER="en_DK.utf8"
LC_NAME="en_DK.utf8"
LC_ADDRESS="en_DK.utf8"
LC_TELEPHONE="en_DK.utf8"
LC_MEASUREMENT="en_DK.utf8"
LC_IDENTIFICATION="en_DK.utf8"
LC_ALL=en_DK.utf8


On 2014-07-30 07:25, Leon Bevc wrote:
> Here is output from openSuse 13.1 and Scilab 5.4.1:
> ---------------------------
> lebevc at linux-xkf0:~> uname -a
> Linux linux-xkf0.site 3.15.3-1.g42bf625-desktop #1 SMP PREEMPT
> Wed Jul 2 09:23:08 UTC 2014 (42bf625) x86_64 x86_64 x86_64 GNU/Linux
> ---------------------------
> lebevc at linux-xkf0:~> locale
> LANG=sl_SI.UTF-8
> LC_CTYPE="sl_SI.UTF-8"
> LC_NUMERIC="sl_SI.UTF-8"
> LC_TIME="sl_SI.UTF-8"
> LC_COLLATE="sl_SI.UTF-8"
> LC_MONETARY="sl_SI.UTF-8"
> LC_MESSAGES="sl_SI.UTF-8"
> LC_PAPER="sl_SI.UTF-8"
> LC_NAME="sl_SI.UTF-8"
> LC_ADDRESS="sl_SI.UTF-8"
> LC_TELEPHONE="sl_SI.UTF-8"
> LC_MEASUREMENT="sl_SI.UTF-8"
> LC_IDENTIFICATION="sl_SI.UTF-8"
> LC_ALL=
> ---------------------------
> lebevc at linux-xkf0:~>  printf "%0.2f\n" 3.1416
> bash: printf: 3.1416: invalid number
> 0,00
> lebevc at linux-xkf0:~> printf "%0.2f\n" 3,1416
> 3,14
>
> //-----Scilab---------------------
>
> -->ver
> Scilab Version:   5.4.1.1364497457
>
> -->x = 0.12345
>   x  =
>      0.12345
>
> -->xstr = msprintf("%0.2f", x)
>   xstr  =
>   0.12
>
>
> 2014-07-29 22:41 GMT+02:00 Stefan Du Rietz <sdr at durietz.se
> <mailto:sdr at durietz.se>>:
>
>     Leon, Can you please try it with Scilab 5.4.1 under openSUSE? And
>     can you show its Bash output from
>     $ locale
>
>     When I was running Scilab 5.4.1 under Xubuntu 12.04, printf worked
>     OK, but also in Bash. So the question is: Why do you now get
>     different results in Scilab and Bash?
>
>     And *the important point*: Why should a mathematics program handle
>     inputs differently from outputs?
>
>     If one should handle decimal separators differently depending on
>     the local language, it should be done consistently (as in Bash,
>     even if I don't like it)!
>
>     One could of course have special functions or arguments to present
>     numbers in specific local formats.
>
>     Stefan
>
>
>
>     On 2014-07-29 19:41, Leon Bevc wrote:
>
>         Strange...
>
>         In this case I got the same result as you on Xubuntu and openSUSE:
>
>         [ xUbuntu 14.04.1 - 32bit / Scilab 5.5.0 / LANG=sl_SI.UTF-8 ]
>         lebevc at book-PC:~$ printf "%0.2f\n" 3.1416
>         bash: printf: 3.1416: neveljavno ?tevilo
>         0,00
>         lebevc at book-PC:~$ printf "%0.2f\n" 3,1416
>         3,14
>
>         ------------------------------__------------------------------__----------
>         [ openSUSE 13.1-64bit ; Scilab 5.4.1]
>         lebevc at linux-xkf0:~> printf "%0.2f\n" 3.1416
>         bash: printf: 3.1416: invalid number
>         0,00
>         lebevc at linux-xkf0:~> printf "%0.2f\n" 3,1416
>         3,14
>
>         -->x = 0.6231166;
>         -->xstr = msprintf("%0.2f", x)
>            xstr  =
>            0.62
>
>
>         _________________________________________________
>         users mailing list
>         users at lists.scilab.org <mailto:users at lists.scilab.org>
>         http://lists.scilab.org/__mailman/listinfo/users
>         <http://lists.scilab.org/mailman/listinfo/users>
>
>
>
>     _________________________________________________
>     users mailing list
>     users at lists.scilab.org <mailto:users at lists.scilab.org>
>     http://lists.scilab.org/__mailman/listinfo/users
>     <http://lists.scilab.org/mailman/listinfo/users>
>
>
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users
>




From sdr at durietz.se  Sat Aug  2 22:35:25 2014
From: sdr at durietz.se (Stefan Du Rietz)
Date: Sat, 02 Aug 2014 22:35:25 +0200
Subject: [Scilab-users] printf bug?
In-Reply-To: <53DD4A59.8070901@durietz.se>
References: <53D7AA5F.6020906@durietz.se>
 <CAORB_+trfR5qHciwOkJK8igNiu_hVaq-b0kFgp=Cj=0H0oDLEw@mail.gmail.com>
 <53D7D4DE.1080005@durietz.se>
 <CAORB_+v356j_DQjkiy++CWT0OADR2+aTJOSsRiELFXedTU6oPw@mail.gmail.com>
 <53D8070A.9070000@durietz.se>
 <CAORB_+uVKy-e1k3ajU88+fPW+QbK3_WeLH8jzpc1F9Z0CrZrig@mail.gmail.com>
 <53DD4A59.8070901@durietz.se>
Message-ID: <53DD4B8D.4090908@durietz.se>

With "Scilab" here, I mean Scilab 5.5.0.

On 2014-08-02 22:30, Stefan Du Rietz wrote:
> Thank you, Leon,
> it confirms that Scilab 5.4.1 handles it correctly.
>
> But when I have LC_NUMERIC="en_DK.utf8" which means decimal comma, see
> below, Scilab is in error:
> -->msprintf("%0.2f", %pi)
>   ans  =
>   3,14
> -->msprintf("%0.2f", 3.1416)
>   ans  =
>   3,14
>
> Compare the correct handling in Python:
>  >>> "Pi with two decimals is %0.2f" % 3.1416
> 'Pi with two decimals is 3.14'
>
> Can any of the developers comment on this, or shall I report a bug?
>
> Regards
> Stefan
>
> stefan at Asus1:~$ uname -a
> Linux Asus1 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:12 UTC
> 2014 i686 i686 i686 GNU/Linux
> stefan at Asus1:~$ locale
> LANG=en_GB.UTF-8
> LANGUAGE=en_GB:en
> LC_CTYPE="en_DK.utf8"
> LC_NUMERIC="en_DK.utf8"
> LC_TIME="en_DK.utf8"
> LC_COLLATE="en_DK.utf8"
> LC_MONETARY="en_DK.utf8"
> LC_MESSAGES="en_DK.utf8"
> LC_PAPER="en_DK.utf8"
> LC_NAME="en_DK.utf8"
> LC_ADDRESS="en_DK.utf8"
> LC_TELEPHONE="en_DK.utf8"
> LC_MEASUREMENT="en_DK.utf8"
> LC_IDENTIFICATION="en_DK.utf8"
> LC_ALL=en_DK.utf8
>
>
> On 2014-07-30 07:25, Leon Bevc wrote:
>> Here is output from openSuse 13.1 and Scilab 5.4.1:
>> ---------------------------
>> lebevc at linux-xkf0:~> uname -a
>> Linux linux-xkf0.site 3.15.3-1.g42bf625-desktop #1 SMP PREEMPT
>> Wed Jul 2 09:23:08 UTC 2014 (42bf625) x86_64 x86_64 x86_64 GNU/Linux
>> ---------------------------
>> lebevc at linux-xkf0:~> locale
>> LANG=sl_SI.UTF-8
>> LC_CTYPE="sl_SI.UTF-8"
>> LC_NUMERIC="sl_SI.UTF-8"
>> LC_TIME="sl_SI.UTF-8"
>> LC_COLLATE="sl_SI.UTF-8"
>> LC_MONETARY="sl_SI.UTF-8"
>> LC_MESSAGES="sl_SI.UTF-8"
>> LC_PAPER="sl_SI.UTF-8"
>> LC_NAME="sl_SI.UTF-8"
>> LC_ADDRESS="sl_SI.UTF-8"
>> LC_TELEPHONE="sl_SI.UTF-8"
>> LC_MEASUREMENT="sl_SI.UTF-8"
>> LC_IDENTIFICATION="sl_SI.UTF-8"
>> LC_ALL=
>> ---------------------------
>> lebevc at linux-xkf0:~>  printf "%0.2f\n" 3.1416
>> bash: printf: 3.1416: invalid number
>> 0,00
>> lebevc at linux-xkf0:~> printf "%0.2f\n" 3,1416
>> 3,14
>>
>> //-----Scilab---------------------
>>
>> -->ver
>> Scilab Version:   5.4.1.1364497457
>>
>> -->x = 0.12345
>>   x  =
>>      0.12345
>>
>> -->xstr = msprintf("%0.2f", x)
>>   xstr  =
>>   0.12
>>
>>
>> 2014-07-29 22:41 GMT+02:00 Stefan Du Rietz <sdr at durietz.se
>> <mailto:sdr at durietz.se>>:
>>
>>     Leon, Can you please try it with Scilab 5.4.1 under openSUSE? And
>>     can you show its Bash output from
>>     $ locale
>>
>>     When I was running Scilab 5.4.1 under Xubuntu 12.04, printf worked
>>     OK, but also in Bash. So the question is: Why do you now get
>>     different results in Scilab and Bash?
>>
>>     And *the important point*: Why should a mathematics program handle
>>     inputs differently from outputs?
>>
>>     If one should handle decimal separators differently depending on
>>     the local language, it should be done consistently (as in Bash,
>>     even if I don't like it)!
>>
>>     One could of course have special functions or arguments to present
>>     numbers in specific local formats.
>>
>>     Stefan
>>
>>
>>
>>     On 2014-07-29 19:41, Leon Bevc wrote:
>>
>>         Strange...
>>
>>         In this case I got the same result as you on Xubuntu and
>> openSUSE:
>>
>>         [ xUbuntu 14.04.1 - 32bit / Scilab 5.5.0 / LANG=sl_SI.UTF-8 ]
>>         lebevc at book-PC:~$ printf "%0.2f\n" 3.1416
>>         bash: printf: 3.1416: neveljavno ?tevilo
>>         0,00
>>         lebevc at book-PC:~$ printf "%0.2f\n" 3,1416
>>         3,14
>>
>>
>> ------------------------------__------------------------------__----------
>>
>>         [ openSUSE 13.1-64bit ; Scilab 5.4.1]
>>         lebevc at linux-xkf0:~> printf "%0.2f\n" 3.1416
>>         bash: printf: 3.1416: invalid number
>>         0,00
>>         lebevc at linux-xkf0:~> printf "%0.2f\n" 3,1416
>>         3,14
>>
>>         -->x = 0.6231166;
>>         -->xstr = msprintf("%0.2f", x)
>>            xstr  =
>>            0.62
>>
>>
>>         _________________________________________________
>>         users mailing list
>>         users at lists.scilab.org <mailto:users at lists.scilab.org>
>>         http://lists.scilab.org/__mailman/listinfo/users
>>         <http://lists.scilab.org/mailman/listinfo/users>
>>
>>
>>
>>     _________________________________________________
>>     users mailing list
>>     users at lists.scilab.org <mailto:users at lists.scilab.org>
>>     http://lists.scilab.org/__mailman/listinfo/users
>>     <http://lists.scilab.org/mailman/listinfo/users>
>>
>>
>>
>>
>> _______________________________________________
>> users mailing list
>> users at lists.scilab.org
>> http://lists.scilab.org/mailman/listinfo/users
>>
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users




From Floyd.Xu at ka-group.com  Sat Aug  2 09:59:33 2014
From: Floyd.Xu at ka-group.com (Floyd Xu)
Date: Sat, 2 Aug 2014 07:59:33 +0000
Subject: [Scilab-users] A question about plotting
Message-ID: <ed463a4731af4c0eb259a967997515dd@ekon-exch01.kaexch.global.pvt>

Hi , All:

I have a question about plotting.

I want to plot 2 lines in a graphic , so I type the command as below:

-->x=linspace(0,2*%pi,40);
-->y1=sin(x)

-->y2=cos(x);
-->X=[x,x];
-->Y=[y1,y2];

Then , I type the plot command :

-->plot(x,y1,x,y2);

The result is shown as below:

[Graphic window number 0 (2).bmp]

But when I type a command as below:

-->plot(X,Y);

The result is :
[Graphic window number 0.bmp]

It  has an additional line.

Why will this line appear?

Thanks for your reply.










[cid:image1d1b4c.JPG at 1409fa80.42bc79fd]



Floyd Xu
Electronic System Design Engineer | Driveline

Office: +86 510 8528 5478  | Mobile: +86 137 7106 3561 | Floyd.Xu at ka-group.com<mailto:Floyd.Xu at ka-group.com>
Kongsberg Automotive | No 30 & 32 Xikun Road, Wuxi Singapore Ind. Park | Wuxi | Jiangsu 214028 | CN
Tel: +86 510 8528 2165 | www.kongsbergautomotive.com<http://www.kongsbergautomotive.com>

Enhancing the driving experience


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From Serge.Steer at inria.fr  Mon Aug  4 10:25:37 2014
From: Serge.Steer at inria.fr (Serge Steer)
Date: Mon, 04 Aug 2014 10:25:37 +0200
Subject: [Scilab-users] A question about plotting
In-Reply-To: <ed463a4731af4c0eb259a967997515dd@ekon-exch01.kaexch.global.pvt>
References: <ed463a4731af4c0eb259a967997515dd@ekon-exch01.kaexch.global.pvt>
Message-ID: <53DF4381.7030701@inria.fr>

Le 02/08/2014 09:59, Floyd Xu a ?crit :
>
> Hi , All:
>
> I have a question about plotting.
>
> I want to plot 2 lines in a graphic , so I type the command as below:
>
> -->x=linspace(0,2*%pi,40);
>
> -->y1=sin(x)
>
> -->y2=cos(x);
>
> -->X=[x,x];
>
> -->Y=[y1,y2];
>
Generating X and Y creates row vectors. if you want to draw several 
curves with one plot instruction, each curve must be passed as a column 
of an array
-->X=[x;x]';
-->Y=[y1;y2]';
-->plot(X,Y)

or simpler
plot(x',Y)


Then , I type the plot command :
>
> -->plot(x,y1,x,y2);
>
> The result is shown as below:
>
> Graphic window number 0 (2).bmp
>
> But when I type a command as below:
>
> -->plot(X,Y);
>
> The result is :
>
> Graphic window number 0.bmp
>
> It  has an additional line.
>
> Why will this line appear?
>
> Thanks for your reply.
>
>
>
> 	
>
> Floyd Xu
> Electronic System Design Engineer | Driveline
> Office: +86 510 8528 5478  | Mobile: +86 137 7106 3561 | 
> Floyd.Xu at ka-group.com <mailto:Floyd.Xu at ka-group.com>
> Kongsberg Automotive | No 30 & 32 Xikun Road, Wuxi Singapore Ind. 
> Park | Wuxi | Jiangsu 214028 | CN
> Tel: +86 510 8528 2165 | www.kongsbergautomotive.com 
> <http://www.kongsbergautomotive.com>
> Enhancing the driving experience
>
>
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users

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From akhorshidi at live.com  Tue Aug  5 08:35:54 2014
From: akhorshidi at live.com (A Khorshidi)
Date: Tue, 5 Aug 2014 11:05:54 +0430
Subject: [Scilab-users] Scilab and Matlab integer representation
Message-ID: <DUB109-W49A135947BE9B2BE982F5CA3E30@phx.gbl>




Hi; 

One reason for using integer type is to save memory space, isn't it? 
However, whos() gives us 24 bytes as storage space for both integer and double data types.

var1 = int8(23); // 1 byte integer representation
whos -name var1
var2 = 23;
whos -name var2

In contrast, Matlab's whos() returns 1 byte for int8 data type and 8 bytes for double precision number. 

And another case, 
For values larger than the maximum value of a given integer data type (e.g. 127 for int8) Scilab and Matlab return different values. 
For example, Scilab's result for int8(200) is -56 but Matlab's result will be 127 (the largest value which can be stored in this data type). 

Could anyone discuss on these different results returned by Scilab and Matalb? And specially the source of the differences? Thank you.

Regards,  
Mehran
_


 		 	   		  
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From aweeks at hidglobal.com  Tue Aug  5 09:38:17 2014
From: aweeks at hidglobal.com (aweeks at hidglobal.com)
Date: Tue, 5 Aug 2014 08:38:17 +0100
Subject: [Scilab-users] Scilab and Matlab integer representation
In-Reply-To: <DUB109-W49A135947BE9B2BE982F5CA3E30@phx.gbl>
References: <DUB109-W49A135947BE9B2BE982F5CA3E30@phx.gbl>
Message-ID: <OF8A043BC3.4296A110-ON80257D2B.00294399-80257D2B.0029F4F5@prox.com>


Hi Mehran,

I can't give you any explanation (and I've never really questioned these
points myself) but you may find some sections of these documents
interesting or useful.  They both mention integer value ranges.

	www.scilab.org/content/download/247/1702/file/introscilab.pdf
			page 25


http://wiki.scilab.org/Tutorials?action=AttachFile&do=view&target=Scilab4Matlab.pdf
		page 18


Best wishes,
Adrian.

                                          
 Adrian Weeks                             
 Development Engineer                     
                                          
                                          
 HID Global,                              
 3 Cae Gwyrdd,                            
 Green Meadow Springs                     
 Business Park,                           
 Cardiff CF15 7AB,                        
 United Kingdom.                          
 +44 (0)29 20528523                       
 (Office)                                 
 aweeks at hidglobal.com                     
 www.hidglobal.com                        
                                          





                                                                                                                                  
  From:       A Khorshidi <akhorshidi at live.com>                                                                                   
                                                                                                                                  
  To:         Scilab Users <users at lists.scilab.org>                                                                               
                                                                                                                                  
  Date:       05/08/2014 07:36                                                                                                    
                                                                                                                                  
  Subject:    [Scilab-users] Scilab and Matlab integer representation                                                             
                                                                                                                                  
  Sent by:    "users" <users-bounces at lists.scilab.org>                                                                            
                                                                                                                                  





Hi;

One reason for using integer type is to save memory space, isn't it?
However, whos() gives us 24 bytes as storage space for both integer and
double data types.

var1 = int8(23); // 1 byte integer representation
whos -name var1
var2 = 23;
whos -name var2

In contrast, Matlab's whos() returns 1 byte for int8 data type and 8 bytes
for double precision number.

And another case,
For values larger than the maximum value of a given integer data type (e.g.
127 for int8) Scilab and Matlab return different values.
For example, Scilab's result for int8(200) is -56 but Matlab's result will
be 127 (the largest value which can be stored in this data type).

Could anyone discuss on these different results returned by Scilab and
Matalb? And specially the source of the differences? Thank you.

Regards,
Mehran
_
_______________________________________________
users mailing list
users at lists.scilab.org
http://lists.scilab.org/mailman/listinfo/users

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From Christophe.Dang at sidel.com  Tue Aug  5 09:41:04 2014
From: Christophe.Dang at sidel.com (Dang, Christophe)
Date: Tue, 5 Aug 2014 09:41:04 +0200
Subject: [Scilab-users] Scilab and Matlab integer representation
In-Reply-To: <DUB109-W49A135947BE9B2BE982F5CA3E30@phx.gbl>
References: <DUB109-W49A135947BE9B2BE982F5CA3E30@phx.gbl>
Message-ID: <3B5FFC67498DFF49AE7271A584867D16F40B8974A3@301EX00100.sidel.com>

Hello,

concerning the second point

> De : A Khorshidi
> Envoy? : mardi 5 ao?t 2014 08:36
>
> For example, Scilab's result for int8(200) is -56 but Matlab's result will be 127
> (the largest value which can be stored in this data type). 

Such a case should be handled uniformely, which would mean described in a standard.
The only "right" answer would be a special value, indicating the overflow.

Such special values are in the IEEE 754 standard for floating point representation,
but int8  represent few values (256), who would waste one value to implement an error code?

IMHO, this is our responsability as programmers to make sure that we use adapted representations for our values.

-- 
Christophe Dang Ngoc Chan
Mechanical calculation engineer

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From sgougeon at free.fr  Tue Aug  5 13:59:37 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Tue, 05 Aug 2014 13:59:37 +0200
Subject: [Scilab-users] Scilab and Matlab integer representation
In-Reply-To: <DUB109-W49A135947BE9B2BE982F5CA3E30@phx.gbl>
References: <DUB109-W49A135947BE9B2BE982F5CA3E30@phx.gbl>
Message-ID: <53E0C729.8060008@free.fr>

Hello Mehran,

Le 05/08/2014 08:35, A Khorshidi a ?crit :
> Hi;
>
> One reason for using integer type is to save memory space, isn't it?
> However, whos() gives us 24 bytes as storage space for both integer 
> and double data types.

A scalar number is considered as a 1x1 matrix. For any matrix, some room 
is needed to record the number of rows, of columns, the type of the 
matrix, etc.
If you do the same test for a large matrix, the memory used becomes 
asymptotically proportionnal to the matrix size:

-->var1 = int8(rand(1000,1000)*64); // 1 byte integer representation
-->whos -name var1
Name                     Type           Size           Bytes

var1                     int8           1000 by 1000   1000024

The way how Scilab stores variables in memory is described here:
http://wiki.scilab.org/Memory%20representation%20of%20variables

Best regards
Samuel
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From sgougeon at free.fr  Tue Aug  5 14:54:31 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Tue, 05 Aug 2014 14:54:31 +0200
Subject: [Scilab-users] Scilab and Matlab integer representation
In-Reply-To: <DUB109-W49A135947BE9B2BE982F5CA3E30@phx.gbl>
References: <DUB109-W49A135947BE9B2BE982F5CA3E30@phx.gbl>
Message-ID: <53E0D407.4020301@free.fr>

About that:
Le 05/08/2014 08:35, A Khorshidi a ?crit :
> .../...
> And another case,
> For values larger than the maximum value of a given integer data type 
> (e.g. 127 for int8) Scilab and Matlab return different values.
> For example, Scilab's result for int8(200) is -56 but Matlab's result 
> will be 127 (the largest value which can be stored in this data type).

Scilab wraps integer overflows (200 - 2^8 = -56), whereas Octave 
saturates. When overflowing an integer, "R" delivers a "NA" value (Not 
Available).
I have no opinion about the best way to deal with integer overflow when 
designing the language.
This kind of topic has been discussed when designing the bitshift() 
function for Scilab:
http://bugzilla.scilab.org/show_bug.cgi?id=9006#c8

Regards
Samuel

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From akhorshidi at live.com  Tue Aug  5 16:34:11 2014
From: akhorshidi at live.com (A Khorshidi)
Date: Tue, 5 Aug 2014 07:34:11 -0700 (PDT)
Subject: [Scilab-users] Scilab and Matlab integer representation
In-Reply-To: <53E0D407.4020301@free.fr>
References: <DUB109-W49A135947BE9B2BE982F5CA3E30@phx.gbl>
 <53E0D407.4020301@free.fr>
Message-ID: <1407249251458-4031007.post@n3.nabble.com>


Thank you All; 


aweeks wrote
> http://wiki.scilab.org/Tutorials?action=AttachFile&do=view&target=Scilab4Matlab.pdf
> 	page 18

Yes, this document point out the second case nice. 



Dang, Christophe wrote
> The only "right" answer would be a special value, indicating the overflow.

Yes, exactly. 


Dang, Christophe wrote
> but int8  represent few values (256), who would waste one value to
> implement an error code?

Really who? ;) 



Samuel GOUGEON wrote
> If you do the same test for a large matrix, the memory used becomes 
> asymptotically proportionnal to the matrix size:

But how much proportional? 

According to the link you provided, we reach to the golden formula below to
compute the amount the memory used by a Scilab variable: 
for doubles data type:
Number_of_Bytes = Bytes_of_Header + Array_Dim * Bytes_of_theDataType

for integer data type:
Number_of_Bytes = Bytes_of_Header + Array_Dim * Bytes_of_theDataType +
An_Unknown_Amount

What do you think of the "An_Unknown_Amount"? 
Although that document describe doubles, booleans, string, polynomials, ...
in detail, we cannot find anything about integer data types. 

So let me continue with some example: 


-->Doubles = [ 1 , 2 , 3 ; 4 , 5 , 6 ];   
-->whos -name Doubles
Name                     Type           Size           Bytes        
Doubles                  constant       2 by 3         64

-->Number_of_Bytes = (4*4) + (size(Doubles,'*')*8) 
 Number_of_Bytes  =
     64.   


	 
-->Integers = int8([ 1 , 2 , 3 ; 4 , 5 , 6 ]);
-->whos -name Integers
Name                     Type           Size           Bytes        
Integers                 int8           2 by 3         24           

-->Number_of_Bytes = (4*4) + (size(Integers,'*')*1) 
 Number_of_Bytes  =
     22. 	 

Then we have An_Unknown_Amount = 24-22=2 

So the question is, 
What is the "An_Unknown_Amount"? 


Merci, 
Mehran
_




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From kpiroddi at gmail.com  Tue Aug  5 21:27:58 2014
From: kpiroddi at gmail.com (Kelvin Piroddi)
Date: Tue, 5 Aug 2014 21:27:58 +0200
Subject: [Scilab-users] Using the mopen function on a apple
Message-ID: <7122613C-58D5-4365-9CDA-83A82A1DA26B@gmail.com>

I am trying to open a file using the mopen function, but i keep getting the ?Cannot open file error?. Not to sure if different syntax is required on a mac for the file address?
Thanks 

From Christophe.Dang at sidel.com  Wed Aug  6 09:27:26 2014
From: Christophe.Dang at sidel.com (Dang, Christophe)
Date: Wed, 6 Aug 2014 09:27:26 +0200
Subject: [Scilab-users] Using the mopen function on a apple
In-Reply-To: <7122613C-58D5-4365-9CDA-83A82A1DA26B@gmail.com>
References: <7122613C-58D5-4365-9CDA-83A82A1DA26B@gmail.com>
Message-ID: <3B5FFC67498DFF49AE7271A584867D16F40B897AFC@301EX00100.sidel.com>

Hello, 

> De la part de Kelvin Piroddi
> Envoy? : mardi 5 ao?t 2014 21:28
>
> I am trying to open a file using the mopen function, but i keep getting the
> 'Cannot open file error'.

Maybe you could provide us a minimal example that generates the error:
a small file you try to open (or a few code lines that generate a small file)
and the code line you use to open it.

Best regards

-- 
Christophe Dang Ngoc Chan
Mechanical calculation engineer

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From breitu at arcor.de  Wed Aug  6 10:42:33 2014
From: breitu at arcor.de (breitu)
Date: Wed, 6 Aug 2014 01:42:33 -0700 (PDT)
Subject: [Scilab-users] Suddenly execution of programs started in scinotes
	as exec(**, -1)
Message-ID: <1407314553370-4031010.post@n3.nabble.com>

I run a scilab program from the scinotes using the execute button.
It ended with an error. Now, when I hit the execute button in scinotes to
run it again, the following message appears in the console:

exec('/home/karl/DATA/programmesci/minimize.sci', -1)

and I get nothing else on the screen.
What did i do wrong?
Thanks
 



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From Christophe.Dang at sidel.com  Wed Aug  6 10:54:47 2014
From: Christophe.Dang at sidel.com (Dang, Christophe)
Date: Wed, 6 Aug 2014 10:54:47 +0200
Subject: [Scilab-users] Suddenly execution of programs started in
 scinotes	as exec(**, -1)
In-Reply-To: <1407314553370-4031010.post@n3.nabble.com>
References: <1407314553370-4031010.post@n3.nabble.com>
Message-ID: <3B5FFC67498DFF49AE7271A584867D16F40B897BEC@301EX00100.sidel.com>

Hello,

> De la part de breitu
> Envoy? : mercredi 6 ao?t 2014 10:43
>
> I run a scilab program from the scinotes using the execute button.
> It ended with an error.

Maybe you did not exit in the level 0 environment.
Does the prompt look like -1-> or something like that?
Then try abort()

HTH

-- 
Christophe Dang Ngoc Chan
Mechanical calculation engineer

______________________________________________________________________

This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error), please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
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From j.s.strom at hslmg.de  Fri Aug  8 20:35:21 2014
From: j.s.strom at hslmg.de (Jens Simon Strom)
Date: Fri, 8 Aug 2014 18:35:21 +0000 (UTC)
Subject: [Scilab-users] Recognition of cursor key as input
Message-ID: <loom.20140808T203020-227@post.gmane.org>

Is there a way to stop a loop at each cycle and continue it by pressing one
of the cursor keys (up, down, left or right) so that the script  'knows' 
which key has been pressed? I experimented with the input command with no
result.
Kind regards
Jens




From p.muehlmann at gmail.com  Sat Aug  9 06:13:50 2014
From: p.muehlmann at gmail.com (=?UTF-8?Q?Philipp_M=C3=BChlmann?=)
Date: Sat, 9 Aug 2014 07:13:50 +0300
Subject: [Scilab-users] Recognition of cursor key as input
In-Reply-To: <loom.20140808T203020-227@post.gmane.org>
References: <loom.20140808T203020-227@post.gmane.org>
Message-ID: <CACf7ODvFT3+2NAT6JZu5ZJQRtSxQSO2tJQ724yQgV3uW7jK5pQ@mail.gmail.com>

Hallo Jens,

I am not quite sure if there is a way for the cursor keys, but using
"messagebox", "x_dialog" or "x_choices" should fullfill your purpose.

I understand that you want the loop to stop and just go on after a
keyboard command.
So if you use one of the functions mentioned above a popo up window
will appear, whihc you can use to have someting like " go on" (to go
back to the loop) or "abort"(to quit the loop).

you may also use "pause".

Best regars,
Philipp


2014-08-08 21:35 GMT+03:00 Jens Simon Strom <j.s.strom at hslmg.de>:
> Is there a way to stop a loop at each cycle and continue it by pressing one
> of the cursor keys (up, down, left or right) so that the script  'knows'
> which key has been pressed? I experimented with the input command with no
> result.
> Kind regards
> Jens
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users



-- 
There we have the salad.


From weijiang at hdu.edu.cn  Fri Aug  8 09:55:06 2014
From: weijiang at hdu.edu.cn (Jonah)
Date: Fri, 8 Aug 2014 00:55:06 -0700 (PDT)
Subject: [Scilab-users] How to solve sparse nonlinear system by scilabe
Message-ID: <1407484505953-4031012.post@n3.nabble.com>

Hello,

I'm trying to solve a pressure-flow network system which is sparse, nonliear
and huge, around 1k-2k variables. It seems to me fsolve in scilab can't
handle such kind of the problem quite efficiently. 

Do you have good suggestion for solve sparse nonlinear system using scilab?
Thanks a lot.

Regards,

Jonah



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From mjmccann at ieee.org  Mon Aug 11 14:29:24 2014
From: mjmccann at ieee.org (Michael J McCann)
Date: Mon, 11 Aug 2014 12:29:24 +0000
Subject: [Scilab-users] How to solve sparse nonlinear system by scilabe
In-Reply-To: <1407484505953-4031012.post@n3.nabble.com>
References: <1407484505953-4031012.post@n3.nabble.com>
Message-ID: <53E8B724.3030006@ieee.org>

Since the network is passive and hence stable, have you considered 
treating it as a pseudo-dynamic system (by giving capacity to hold fluid 
to each sector) and letting it converge to a solution as the flow 
adjusts itself to equilibrium?  We used to do this sort of trick with 
analog computers many years ago and electrical resistance networks 
actually behave that way. Mike.
On 2014-08-08 7:55, Jonah wrote:
> Hello,
>
> I'm trying to solve a pressure-flow network system which is sparse, nonliear
> and huge, around 1k-2k variables. It seems to me fsolve in scilab can't
> handle such kind of the problem quite efficiently.
>
> Do you have good suggestion for solve sparse nonlinear system using scilab?
> Thanks a lot.
>
> Regards,
>
> Jonah
>
>
>
> --
> View this message in context: http://mailinglists.scilab.org/How-to-solve-sparse-nonlinear-system-by-scilabe-tp4031012.html
> Sent from the Scilab users - Mailing Lists Archives mailing list archive at Nabble.com.
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users
>

-- 
Dr.M.J.McCann,MJMcCann-Consulting



From stephane.mottelet at utc.fr  Mon Aug 11 16:03:54 2014
From: stephane.mottelet at utc.fr (=?ISO-8859-1?Q?St=E9phane_Mottelet?=)
Date: Mon, 11 Aug 2014 16:03:54 +0200
Subject: [Scilab-users] How to solve sparse nonlinear system by scilabe
In-Reply-To: <53E8B724.3030006@ieee.org>
References: <1407484505953-4031012.post@n3.nabble.com>
 <53E8B724.3030006@ieee.org>
Message-ID: <53E8CD4A.5020502@utc.fr>

Hello,

fsolve cannot handle a sparse jacobian, but if you use the Newton's 
method (less than 5 lines of Scilab code),  the sparsity of the jacobian 
will be taken into account in the linear system resolution step.

S.

Le 11/08/2014 14:29, Michael J McCann a ?crit :
> Since the network is passive and hence stable, have you considered 
> treating it as a pseudo-dynamic system (by giving capacity to hold 
> fluid to each sector) and letting it converge to a solution as the 
> flow adjusts itself to equilibrium?  We used to do this sort of trick 
> with analog computers many years ago and electrical resistance 
> networks actually behave that way. Mike.
> On 2014-08-08 7:55, Jonah wrote:
>> Hello,
>>
>> I'm trying to solve a pressure-flow network system which is sparse, 
>> nonliear
>> and huge, around 1k-2k variables. It seems to me fsolve in scilab can't
>> handle such kind of the problem quite efficiently.
>>
>> Do you have good suggestion for solve sparse nonlinear system using 
>> scilab?
>> Thanks a lot.
>>
>> Regards,
>>
>> Jonah
>>
>>
>>
>> -- 
>> View this message in context: 
>> http://mailinglists.scilab.org/How-to-solve-sparse-nonlinear-system-by-scilabe-tp4031012.html
>> Sent from the Scilab users - Mailing Lists Archives mailing list 
>> archive at Nabble.com.
>> _______________________________________________
>> users mailing list
>> users at lists.scilab.org
>> http://lists.scilab.org/mailman/listinfo/users
>>
>



From sgougeon at free.fr  Mon Aug 11 18:36:19 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Mon, 11 Aug 2014 18:36:19 +0200
Subject: [Scilab-users] How to solve sparse nonlinear system by scilabe
In-Reply-To: <1407484505953-4031012.post@n3.nabble.com>
References: <1407484505953-4031012.post@n3.nabble.com>
Message-ID: <53E8F103.4090607@free.fr>

Le 08/08/2014 09:55, Jonah a ?crit :
> Hello,
>
> I'm trying to solve a pressure-flow network system which is sparse, nonliear
> and huge, around 1k-2k variables. It seems to me fsolve in scilab can't
> handle such kind of the problem quite efficiently.
>
> Do you have good suggestion for solve sparse nonlinear system using scilab?
> Thanks a lot.
Have you tried Metanet: http://atoms.scilab.org/toolboxes/metanet
I do not know if it is relevant for your specific case, but it is the 
main Scilab module dealing with network problems.
To use it, download and install it through the ATOMS GUI (run: --> 
atomsGui )
Other modules dealing with graphs are listed here: 
http://atoms.scilab.org/categories/graphs
HTH
Regards
Samuel



From johnfulgor at yahoo.com  Mon Aug 11 21:51:11 2014
From: johnfulgor at yahoo.com (john fulgor)
Date: Mon, 11 Aug 2014 20:51:11 +0100
Subject: [Scilab-users] Persistent data in scicos computational functions
Message-ID: <1407786671.51467.YahooMailNeo@web172804.mail.ir2.yahoo.com>

Hello all,
I'm trying to create a new scicos block, based on a scilab computational function. The computational function creates some constant matrices at start, derived from the parameters, that it uses these matrices all through the simulation. My question is this: where can I store these matrices? Am I supposed to re-compute them all times the function is called? Or: should I store them someway in the discrete state vector, reshaping them someway? And what are the "Discrete state objects" mentioned in the model documentation? 

Thank you very much!
John



From j.s.strom at hslmg.de  Mon Aug 11 10:52:28 2014
From: j.s.strom at hslmg.de (Jens)
Date: Mon, 11 Aug 2014 01:52:28 -0700 (PDT)
Subject: [Scilab-users] Recognition of cursor key as input
In-Reply-To: <CACf7ODvFT3+2NAT6JZu5ZJQRtSxQSO2tJQ724yQgV3uW7jK5pQ@mail.gmail.com>
References: <loom.20140808T203020-227@post.gmane.org>
 <CACf7ODvFT3+2NAT6JZu5ZJQRtSxQSO2tJQ724yQgV3uW7jK5pQ@mail.gmail.com>
Message-ID: <1407747148340-4031015.post@n3.nabble.com>

Hello Philipp,
I'm aware of "messagebox", "x_dialog" or "x_choices". I fear the abbreviated
way I'm looking for does not exist.
Kind regards
Jens



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From sgougeon at free.fr  Tue Aug 12 12:56:52 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Tue, 12 Aug 2014 12:56:52 +0200
Subject: [Scilab-users] Recognition of cursor key as input
In-Reply-To: <loom.20140808T203020-227@post.gmane.org>
References: <loom.20140808T203020-227@post.gmane.org>
Message-ID: <53E9F2F4.6080208@free.fr>

Hello,

Le 08/08/2014 20:35, Jens Simon Strom a ?crit :
> Is there a way to stop a loop at each cycle and continue it by pressing one
> of the cursor keys (up, down, left or right) so that the script  'knows'
> which key has been pressed? I experimented with the input command with no
> result.
This topic has been somewhat considered for instance in this thread:
http://mailinglists.scilab.org/Re-user-terminate-program-exit-while-loop-tt4030794.html

Samuel


From mjmccann at ieee.org  Tue Aug 12 12:54:13 2014
From: mjmccann at ieee.org (Michael J McCann)
Date: Tue, 12 Aug 2014 10:54:13 +0000
Subject: [Scilab-users] Recognition of cursor key as input
In-Reply-To: <1407747148340-4031015.post@n3.nabble.com>
References: <loom.20140808T203020-227@post.gmane.org>
 <CACf7ODvFT3+2NAT6JZu5ZJQRtSxQSO2tJQ724yQgV3uW7jK5pQ@mail.gmail.com>
 <1407747148340-4031015.post@n3.nabble.com>
Message-ID: <53E9F255.4050909@ieee.org>

I don't know if this will help but I wrote simulation software in Pascal 
and so that it could respond to mouse clicks anywhere while running it 
made a check to look for it at the end of  every single integration 
step. I guess you might be able to check for keyboard input repeatedly. 
Mike.
On 2014-08-11 8:52, Jens wrote:
> Hello Philipp,
> I'm aware of "messagebox", "x_dialog" or "x_choices". I fear the abbreviated
> way I'm looking for does not exist.
> Kind regards
> Jens
>
>
>
> --
> View this message in context: http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031015.html
> Sent from the Scilab users - Mailing Lists Archives mailing list archive at Nabble.com.
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users
>

-- 
Dr.M.J.McCann,MJMcCann-Consulting



From sgougeon at free.fr  Tue Aug 12 13:38:19 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Tue, 12 Aug 2014 13:38:19 +0200
Subject: [Scilab-users] Recognition of cursor key as input
In-Reply-To: <loom.20140808T203020-227@post.gmane.org>
References: <loom.20140808T203020-227@post.gmane.org>
Message-ID: <53E9FCAB.6020207@free.fr>

Le 08/08/2014 20:35, Jens Simon Strom a ?crit :
> Is there a way to stop a loop at each cycle and continue it by pressing one
> of the cursor keys (up, down, left or right) so that the script  'knows'
> which key has been pressed? I experimented with the input command with no
> result.
If you succeed in implementing your code with these keys to route and 
process, it might be not really portable.
The following link could be of interest:
http://stackoverflow.com/questions/2876275/what-are-the-ascii-values-of-up-down-left-right

Samuel



From Serge.Steer at inria.fr  Tue Aug 12 18:25:11 2014
From: Serge.Steer at inria.fr (Serge Steer)
Date: Tue, 12 Aug 2014 18:25:11 +0200
Subject: [Scilab-users] Persistent data in scicos computational functions
In-Reply-To: <1407786671.51467.YahooMailNeo@web172804.mail.ir2.yahoo.com>
References: <1407786671.51467.YahooMailNeo@web172804.mail.ir2.yahoo.com>
Message-ID: <53EA3FE7.8050609@inria.fr>

Le 11/08/2014 21:51, john fulgor a ?crit :
> Hello all,
> I'm trying to create a new scicos block, based on a scilab computational function. The computational function creates some constant matrices at start, derived from the parameters, that it uses these matrices all through the simulation. My question is this: where can I store these matrices? Am I supposed to re-compute them all times the function is called?
of course not
> Or: should I store them someway in the discrete state vector, reshaping them someway?
for exemple, but it is better using the work array. For reshaping it 
depends if your computational function is written in Scilab or in C
> And what are the "Discrete state objects" mentioned in the model documentation?
odstate can be used to store discrete states  mainly defined by Scilab 
data structures.

>
> Thank you very much!
> John
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users
>



From j.s.strom at hslmg.de  Tue Aug 12 14:27:52 2014
From: j.s.strom at hslmg.de (Jens)
Date: Tue, 12 Aug 2014 05:27:52 -0700 (PDT)
Subject: [Scilab-users] Recognition of cursor key as input
In-Reply-To: <53E9FCAB.6020207@free.fr>
References: <loom.20140808T203020-227@post.gmane.org>
 <53E9FCAB.6020207@free.fr>
Message-ID: <1407846472710-4031026.post@n3.nabble.com>

Hi Samuel, 
ASCII representation of up, down etc. would help me if I knew a Scilab
command which puts the ascii value into a variable. input() is definitely
unable to do so.

Jens




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From ebmb.sci at gmail.com  Wed Aug 13 03:11:41 2014
From: ebmb.sci at gmail.com (ebmb.sci)
Date: Tue, 12 Aug 2014 18:11:41 -0700 (PDT)
Subject: [Scilab-users] Optimization question
Message-ID: <1407892301423-4031028.post@n3.nabble.com>

 Hello All,
 please, could someone guide me on how to proceed to minimize the following
polynomial using functions optim and numdiff. Since the parameters A and B
have different constraints (i.e.: A = [0 1] and B = [1000 2000]), how must I
sign the values and pass them for optim? I implemented a basic script to try
to do it, but it always returns with wrong results.

function f = myFc(x)
   a = x(1);
   b = x(2);
   f = 0.000791 + 0.000027*a + -0.000037*b + 0.000180*a*b + -0.000126*a^2 +
-0.000162*b^2;
endfunction

function [f, g, ind] = myFcCost(x, ind)
        f = myFc(x);
        g = numdiff(myFc, x);
endfunction

x0 = [0 1];

[fopt, xopt] = optim(myFcCost, 'b', [0 1], [1000 2000], x0);

 I am so thanks for any help in advance!

 Best regards,
 Eduardo.




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From stephane.mottelet at utc.fr  Wed Aug 13 09:14:41 2014
From: stephane.mottelet at utc.fr (=?ISO-8859-1?Q?St=E9phane_Mottelet?=)
Date: Wed, 13 Aug 2014 09:14:41 +0200
Subject: [Scilab-users] Optimization question
In-Reply-To: <1407892301423-4031028.post@n3.nabble.com>
References: <1407892301423-4031028.post@n3.nabble.com>
Message-ID: <53EB1061.1040506@utc.fr>

Le 13/08/2014 03:11, ebmb.sci a ?crit :
>   Hello All,
>   please, could someone guide me on how to proceed to minimize the following
> polynomial using functions optim and numdiff. Since the parameters A and B
> have different constraints (i.e.: A = [0 1] and B = [1000 2000]), how must I
> sign the values and pass them for optim? I implemented a basic script to try
> to do it, but it always returns with wrong results.
>
> function f = myFc(x)
>     a = x(1);
>     b = x(2);
>     f = 0.000791 + 0.000027*a + -0.000037*b + 0.000180*a*b + -0.000126*a^2 +
> -0.000162*b^2;
> endfunction
>
> function [f, g, ind] = myFcCost(x, ind)
>          f = myFc(x);
>          g = numdiff(myFc, x);
> endfunction
>
> x0 = [0 1];
>
> [fopt, xopt] = optim(myFcCost, 'b', [0 1], [1000 2000], x0);
>
>   I am so thanks for any help in advance!
>
>   Best regards,
>   Eduardo.

Hello,

your bounds should be given this way (first vector for lower bounds and 
second for upper ones) :

[fopt, xopt] = optim(myFcCost, 'b', [0 1000], [1 2000], x0);


S.


>
>
>
>
> --
> View this message in context: http://mailinglists.scilab.org/Optimization-question-tp4031028.html
> Sent from the Scilab users - Mailing Lists Archives mailing list archive at Nabble.com.
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users



From stephane.mottelet at utc.fr  Wed Aug 13 11:10:24 2014
From: stephane.mottelet at utc.fr (stephane.mottelet at utc.fr)
Date: Wed, 13 Aug 2014 11:10:24 +0200
Subject: [Scilab-users] Recognition of cursor key as input
In-Reply-To: <1407846472710-4031026.post@n3.nabble.com>
References: <loom.20140808T203020-227@post.gmane.org>
 <53E9FCAB.6020207@free.fr> <1407846472710-4031026.post@n3.nabble.com>
Message-ID: <20140813111024.Horde.Hc-sr4Z-24Ie7jJkRN_21g1@webmail2.utc.fr>

  Hello,

IMHO, the only way to trap a keypress and get the ascii (?) code is to use
the event_handler callback of a figure :

function handler(x,y,ibut)
//
endfunction

f=gcf();
f.event_handler='handler';
?f.event_handle_enable='on';

On my computer, I have the following mapping?

left arrow pressed : ibut=37 (released=-37)
up arrow : 38
right arrow 39
down arrow 40

The problem is that you need to have a figure opened, and that this figure
must have the focus.

S.

  Jens <j.s.strom at hslmg.de> a ?crit?:

> Hi Samuel,
> ASCII representation of up, down etc. would help me if I knew a Scilab
> command which puts the ascii value into a variable. input() is definitely
> unable to do so.
>
> Jens
>
> --
> View this message in context:
>
http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031026.html
> Sent from the Scilab users - Mailing Lists Archives mailing list archive
> at Nabble.com.
> _______________________________________________
> users mailing list
> users at lists.scilab.orghttp://lists.scilab.org/mailman/listinfo/users
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From j.s.strom at hslmg.de  Wed Aug 13 13:05:06 2014
From: j.s.strom at hslmg.de (Jens)
Date: Wed, 13 Aug 2014 04:05:06 -0700 (PDT)
Subject: [Scilab-users] Recognition of cursor key as input
In-Reply-To: <20140813111024.Horde.Hc-sr4Z-24Ie7jJkRN_21g1@webmail2.utc.fr>
References: <loom.20140808T203020-227@post.gmane.org>
 <53E9FCAB.6020207@free.fr> <1407846472710-4031026.post@n3.nabble.com>
 <20140813111024.Horde.Hc-sr4Z-24Ie7jJkRN_21g1@webmail2.utc.fr>
Message-ID: <53EB4646.1030000@hslmg.de>

Hello,
My event_handler experiments with the Scilab help example in "Event 
handler functions" (see below) led to nothing.  I can see the "event" at 
the bottom of the graphic window but I cannot arrest it in a variable. I 
tried this:

function  my_eventhandler(win,x,y,ibut)
   if  ibut==-1000  then  return,end
   [x,y]=xchange  <xchange.html>(x,y,'i2f')
   xinfo  <xinfo.html>(msprintf  <msprintf.html>('Event code %d at mouse position is (%f,%f)',ibut,x,y))
endfunction

plot2d  <plot2d.html>()
fig  =  gcf  <gcf.html>()  ;
fig.event_handler  =  'my_eventhandler'  ;
fig.event_handler_enable  =  "on"  ;
//now:
//   -  move the mouse over the graphic window
//   -  press and release keys shifted or not with Ctrl pressed or not
//   -  press button, wait a little release
//   -  press and release button
//   -  double-click button

fig.event_handler_enable  =  "off"  ;  //suppress the event handler

	<scilab://scilab.execexample/> 	<scilab://scilab.editexample/>


I fear I must retire to

m=evstr(x_dialog(...)

Jens
----------------------------------------------------------------------------

Am 13.08.2014 11:12, schrieb mottelet [via Scilab / Xcos - Mailing Lists 
Archives]:
>
> Hello,
>
> IMHO, the only way to trap a keypress and get the ascii (?) code is to 
> use the event_handler callback of a figure :
>
> function handler(x,y,ibut)
> //
> endfunction
>
> f=gcf();
> f.event_handler='handler';
> f.event_handle_enable='on';
>
> On my computer, I have the following mapping
>
> left arrow pressed : ibut=37 (released=-37)
> up arrow : 38
> right arrow 39
> down arrow 40
>
> The problem is that you need to have a figure opened, and that this 
> figure must have the focus.
>
> S.
>
> Jens <[hidden email] </user/SendEmail.jtp?type=node&node=4031030&i=0>> 
> a ?crit :
>
>> Hi Samuel,
>> ASCII representation of up, down etc. would help me if I knew a Scilab
>> command which puts the ascii value into a variable. input() is definitely
>> unable to do so.
>>
>> Jens
>>
>>
>>
>>
>> --
>> View this message in context: 
>> http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031026.html
>> Sent from the Scilab users - Mailing Lists Archives mailing list 
>> archive at Nabble.com.
>> _______________________________________________
>> users mailing list
>> [hidden email] </user/SendEmail.jtp?type=node&node=4031030&i=1>.<a 
>> href="orghttp://lists.scilab.org/mailman/listinfo/users" 
>> target="_blank">orghttp://lists.scilab.org/mailman/listinfo/users
>>
>
>
>
> _______________________________________________
> users mailing list
> [hidden email] </user/SendEmail.jtp?type=node&node=4031030&i=2>
> http://lists.scilab.org/mailman/listinfo/users
>
>
> ------------------------------------------------------------------------
> If you reply to this email, your message will be added to the 
> discussion below:
> http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031030.html 
>
> To unsubscribe from [Scilab-users] Recognition of cursor key as input, 
> click here 
> <http://mailinglists.scilab.org/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=4031013&code=ai5zLnN0cm9tQGhzbG1nLmRlfDQwMzEwMTN8LTIyMzcxNjc3Ng==>.
> NAML 
> <http://mailinglists.scilab.org/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> 
>





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From stephane.mottelet at utc.fr  Wed Aug 13 13:39:46 2014
From: stephane.mottelet at utc.fr (stephane.mottelet at utc.fr)
Date: Wed, 13 Aug 2014 13:39:46 +0200
Subject: [Scilab-users] Recognition of cursor key as input
In-Reply-To: <53EB4646.1030000@hslmg.de>
References: <loom.20140808T203020-227@post.gmane.org>
 <53E9FCAB.6020207@free.fr> <1407846472710-4031026.post@n3.nabble.com>
 <20140813111024.Horde.Hc-sr4Z-24Ie7jJkRN_21g1@webmail2.utc.fr>
 <53EB4646.1030000@hslmg.de>
Message-ID: <20140813133946.Horde.RQL3UGFLYN6_5rnwvgA0xw1@webmail2.utc.fr>

  Would this small example fit your needs ?

function handler(win,x,y,ibut)
??? global _keypress
??? if or(ibut==(37:40))
??????? _keypress=ibut;
??? end
endfunction

function key=waitforkeypress()
??? global _keypress
??? set(gcf(),'event_handler','handler','event_handler_enable','on')
??? _keypress=0;
??? while ~_keypress
??????? sleep(1)
??? end
??? set(gcf(),'event_handler_enable','off')
??? key=_keypress;
endfunction

while 1
??? select waitforkeypress()
??? case 37
??????? disp('left')
??? case 38
??????? disp('up')
??? case 39
??????? disp('right')
??? case 40
??????? disp('down')???????
??????? break
??? end
end

S.

Jens <j.s.strom at hslmg.de> a ?crit?:

> Hello,
> My event_handler experiments with the Scilab help example in "Event
> handler functions" (see below) led to nothing.? I can see the "event" at
> the bottom of the graphic window but I cannot arrest it in a variable. I
> tried this:
>
>           function my_eventhandler(win, x, y, ibut)  if ibut==-1000 then
> return,end  [x,y]=xchange[1](x,y,'i2f')  xinfo[2](msprintf[3]('Event
> code %d at mouse position is (%f,%f)',ibut,x,y))endfunction
> plot2d[4]()fig = gcf[5]() ;fig.event_handler = 'my_eventhandler'
> ;fig.event_handler_enable = "on" ;//now://   -  move the mouse over the
> graphic window//   -  press and release keys shifted or not with Ctrl
> pressed or not//   -  press button, wait a little release//   -  press
> and release button//   -  double-click button fig.event_handler_enable =
> "off" ; //suppress the event handler        	        <a
> href="scilab://scilab.execexample/"> 	        <a
> href="scilab://scilab.editexample/">
>
> I fear I must retire to?
> m=evstr(x_dialog(...)  Jens
>
>
----------------------------------------------------------------------------
>
> Am 13.08.2014 11:12, schrieb mottelet [via Scilab / Xcos - Mailing Lists
> Archives]:
>
>> Hello,
>>
>> IMHO, the only way to trap a keypress and get the ascii (?) code is to
>> use the event_handler callback of a figure :
>>
>> function handler(x,y,ibut)
>> //
>> endfunction
>>
>> f=gcf();
>> f.event_handler='handler';
>> ?f.event_handle_enable='on';
>>
>> On my computer, I have the following mapping?
>>
>> left arrow pressed : ibut=37 (released=-37)
>> up arrow : 38
>> right arrow 39
>> down arrow 40
>>
>> The problem is that you need to have a figure opened, and that this
>> figure must have the focus.
>>
>> S.
>>
>>    Jens <[hidden email][6]> a ?crit?:
>>
>>> Hi Samuel,
>>> ASCII representation of up, down etc. would help me if I knew a Scilab
>>> command which puts the ascii value into a variable. input() is
>>> definitely
>>> unable to do so.
>>>
>>> Jens
>>>
>>> --
>>> View this message in context:
>>>
http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031026.html
>>> Sent from the Scilab users - Mailing Lists Archives mailing list
>>> archive at Nabble.com.
>>> _______________________________________________
>>> users mailing list
>>> [hidden email][7].<a
>>> href="orghttp://lists.scilab.org/mailman/listinfo/users"
>>> target="_blank">orghttp://lists.scilab.org/mailman/listinfo/users
>>
>>
>> ?
>>
>> _______________________________________________
>> users mailing list
>> [hidden email][8]
>> http://lists.scilab.org/mailman/listinfo/users
>>
>> -------------------------
>>        If you reply to this email, your message will be added to the
>> discussion below:
>>
http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031030.html
>>    To unsubscribe from [Scilab-users] Recognition of cursor key as
>> input, click here[9].
>> NAML[10]
>
>
> ?
>
> -------------------------
>
>   View this message in context: Re: Recognition of cursor key as
input[11]
> Sent from the Scilab users - Mailing Lists Archives mailing list
> archive[12] at Nabble.com.



Liens:
------
[1] xchange.html
[2] xinfo.html
[3] msprintf.html
[4] plot2d.html
[5] gcf.html
[6] /user/SendEmail.jtp?type=node&node=4031030&i=0
[7] /user/SendEmail.jtp?type=node&node=4031030&i=1
[8] /user/SendEmail.jtp?type=node&node=4031030&i=2
[9]
[10]  
http://mailinglists.scilab.org/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml
[11]  
http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031031.html
[12]  
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From j.s.strom at hslmg.de  Wed Aug 13 14:12:37 2014
From: j.s.strom at hslmg.de (Jens)
Date: Wed, 13 Aug 2014 05:12:37 -0700 (PDT)
Subject: [Scilab-users] Recognition of cursor key as input
In-Reply-To: <20140813133946.Horde.RQL3UGFLYN6_5rnwvgA0xw1@webmail2.utc.fr>
References: <loom.20140808T203020-227@post.gmane.org>
 <53E9FCAB.6020207@free.fr> <1407846472710-4031026.post@n3.nabble.com>
 <20140813111024.Horde.Hc-sr4Z-24Ie7jJkRN_21g1@webmail2.utc.fr>
 <53EB4646.1030000@hslmg.de>
 <20140813133946.Horde.RQL3UGFLYN6_5rnwvgA0xw1@webmail2.utc.fr>
Message-ID: <53EB561A.20306@hslmg.de>

This is small example's output:
   !--error 77
set: falsche Nummer von Eingangsargument(en): 2 nach 3 erwartet.
at line       3 of function waitforkeypress called by :
     select waitforkeypress()
at line     369 of exec file called by :         [last line og script]
exec('G:\Daten\ScilabFun\functionCheck.sce', -1)

Jens
-----------------------------------------------------------------------------------------------------------


Am 13.08.2014 13:41, schrieb mottelet [via Scilab / Xcos - Mailing Lists 
Archives]:
>
> Would this small example fit your needs ?
>
> function handler(win,x,y,ibut)
>     global _keypress
>     if or(ibut==(37:40))
>         _keypress=ibut;
>     end
> endfunction
>
> function key=waitforkeypress()
>     global _keypress
> set(gcf(),'event_handler','handler','event_handler_enable','on')
>     _keypress=0;
>     while ~_keypress
>         sleep(1)
>     end
>     set(gcf(),'event_handler_enable','off')
>     key=_keypress;
> endfunction
>
> while 1
>     select waitforkeypress()
>     case 37
>         disp('left')
>     case 38
>         disp('up')
>     case 39
>         disp('right')
>     case 40
>         disp('down')
>         break
>     end
> end
>
> S.
>
> Jens <[hidden email] </user/SendEmail.jtp?type=node&node=4031032&i=0>> 
> a ?crit :
>
>> Hello,
>> My event_handler experiments with the Scilab help example in "Event 
>> handler functions" (see below) led to nothing.  I can see the "event" 
>> at the bottom of the graphic window but I cannot arrest it in a 
>> variable. I tried this:
>>
>> function  my_eventhandler(win,x,y,ibut)
>>    if  ibut==-1000  then  return,end
>>    [x,y]=xchange  <xchange.html>(x,y,'i2f')
>>    xinfo  <xinfo.html>(msprintf  <msprintf.html>('Event code %d at mouse position is (%f,%f)',ibut,x,y))
>> endfunction
>>
>> plot2d  <plot2d.html>()
>> fig  =  gcf  <gcf.html>()  ;
>> fig.event_handler  =  'my_eventhandler'  ;
>> fig.event_handler_enable  =  "on"  ;
>> //now:
>> //   -  move the mouse over the graphic window
>> //   -  press and release keys shifted or not with Ctrl pressed or not
>> //   -  press button, wait a little release
>> //   -  press and release button
>> //   -  double-click button
>>
>> fig.event_handler_enable  =  "off"  ;  //suppress the event handler
>> 	<a href="scilab://scilab.execexample/"> 	<a 
>> href="scilab://scilab.editexample/">
>>
>>
>> I fear I must retire to
>> m=evstr(x_dialog(...)
>> Jens
>>
>>
>>
>> ----------------------------------------------------------------------------
>>
>> Am 13.08.2014 11:12, schrieb mottelet [via Scilab / Xcos - Mailing 
>> Lists Archives]:
>>>
>>> Hello,
>>>
>>> IMHO, the only way to trap a keypress and get the ascii (?) code is 
>>> to use the event_handler callback of a figure :
>>>
>>> function handler(x,y,ibut)
>>> //
>>> endfunction
>>>
>>> f=gcf();
>>> f.event_handler='handler';
>>> f.event_handle_enable='on';
>>>
>>> On my computer, I have the following mapping
>>>
>>> left arrow pressed : ibut=37 (released=-37)
>>> up arrow : 38
>>> right arrow 39
>>> down arrow 40
>>>
>>> The problem is that you need to have a figure opened, and that this 
>>> figure must have the focus.
>>>
>>> S.
>>>
>>> Jens <[hidden email] 
>>> </user/SendEmail.jtp?type=node&node=4031030&i=0>> a ?crit :
>>>
>>>> Hi Samuel,
>>>> ASCII representation of up, down etc. would help me if I knew a Scilab
>>>> command which puts the ascii value into a variable. input() is 
>>>> definitely
>>>> unable to do so.
>>>>
>>>> Jens
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> View this message in context: 
>>>> http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031026.html
>>>> Sent from the Scilab users - Mailing Lists Archives mailing list 
>>>> archive at Nabble.com.
>>>> _______________________________________________
>>>> users mailing list
>>>> [hidden email] </user/SendEmail.jtp?type=node&node=4031030&i=1>.<a 
>>>> href="orghttp://lists.scilab.org/mailman/listinfo/users" 
>>>> target="_blank">orghttp://lists.scilab.org/mailman/listinfo/users
>>>>
>>>
>>>
>>> _______________________________________________
>>> users mailing list
>>> [hidden email] </user/SendEmail.jtp?type=node&node=4031030&i=2>
>>> http://lists.scilab.org/mailman/listinfo/users
>>>
>>>
>>> ------------------------------------------------------------------------
>>> If you reply to this email, your message will be added to the 
>>> discussion below:
>>> http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031030.html
>>> To unsubscribe from [Scilab-users] Recognition of cursor key as 
>>> input, click here.
>>> NAML 
>>> <http://mailinglists.scilab.org/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml>
>>
>>
>> ------------------------------------------------------------------------
>>
>> View this message in context: Re: Recognition of cursor key as input 
>> <http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031031.html>
>> Sent from the Scilab users - Mailing Lists Archives mailing list 
>> archive 
>> <http://mailinglists.scilab.org/Scilab-users-Mailing-Lists-Archives-f2602246.html> 
>> at Nabble.com.
>>
>
>
>
> _______________________________________________
> users mailing list
> [hidden email] </user/SendEmail.jtp?type=node&node=4031032&i=1>
> http://lists.scilab.org/mailman/listinfo/users
>
>
> ------------------------------------------------------------------------
> If you reply to this email, your message will be added to the 
> discussion below:
> http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031032.html 
>
> To unsubscribe from [Scilab-users] Recognition of cursor key as input, 
> click here 
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> NAML 
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From stephane.mottelet at utc.fr  Wed Aug 13 14:44:35 2014
From: stephane.mottelet at utc.fr (=?ISO-8859-1?Q?St=E9phane_Mottelet?=)
Date: Wed, 13 Aug 2014 14:44:35 +0200
Subject: [Scilab-users] Recognition of cursor key as input
In-Reply-To: <53EB561A.20306@hslmg.de>
References: <loom.20140808T203020-227@post.gmane.org>
 <53E9FCAB.6020207@free.fr> <1407846472710-4031026.post@n3.nabble.com>
 <20140813111024.Horde.Hc-sr4Z-24Ie7jJkRN_21g1@webmail2.utc.fr>
 <53EB4646.1030000@hslmg.de>
 <20140813133946.Horde.RQL3UGFLYN6_5rnwvgA0xw1@webmail2.utc.fr>
 <53EB561A.20306@hslmg.de>
Message-ID: <53EB5DB3.1040002@utc.fr>


Hello,

I presume you are not using scilab 5.5.0, change the function as follows :

function key=waitforkeypress()
     global _keypress
     set(gcf(),'event_handler','handler');
     set(gcf(),'event_handler_enable','on')
     _keypress=0;
     while ~_keypress
         sleep(1)
     end
     set(gcf(),'event_handler_enable','off')
     key=_keypress;
endfunction

Le 13/08/2014 14:12, Jens a ?crit :
> This is small example's output:
>   !--error 77
> set: falsche Nummer von Eingangsargument(en): 2 nach 3 erwartet.
> at line       3 of function waitforkeypress called by :
>     select waitforkeypress()
> at line     369 of exec file called by :         [last line og script]
> exec('G:\Daten\ScilabFun\functionCheck.sce', -1)
>
> Jens
> -----------------------------------------------------------------------------------------------------------
>
>
> Am 13.08.2014 13:41, schrieb mottelet [via Scilab / Xcos - Mailing 
> Lists Archives]:
>>
>> Would this small example fit your needs ?
>>
>> function handler(win,x,y,ibut)
>>     global _keypress
>>     if or(ibut==(37:40))
>>         _keypress=ibut;
>>     end
>> endfunction
>>
>> function key=waitforkeypress()
>>     global _keypress
>> set(gcf(),'event_handler','handler','event_handler_enable','on')
>>     _keypress=0;
>>     while ~_keypress
>>         sleep(1)
>>     end
>>     set(gcf(),'event_handler_enable','off')
>>     key=_keypress;
>> endfunction
>>
>> while 1
>>     select waitforkeypress()
>>     case 37
>>         disp('left')
>>     case 38
>>         disp('up')
>>     case 39
>>         disp('right')
>>     case 40
>>         disp('down')
>>         break
>>     end
>> end
>>
>> S.
>>
>> Jens <[hidden email] 
>> </user/SendEmail.jtp?type=node&node=4031032&i=0>> a ?crit :
>>
>>> Hello,
>>> My event_handler experiments with the Scilab help example in "Event 
>>> handler functions" (see below) led to nothing.  I can see the 
>>> "event" at the bottom of the graphic window but I cannot arrest it 
>>> in a variable. I tried this:
>>>
>>> function  my_eventhandler(win,x,y,ibut)
>>>    if  ibut==-1000  then  return,end
>>>    [x,y]=xchange  <xchange.html>(x,y,'i2f')
>>>    xinfo  <xinfo.html>(msprintf  <msprintf.html>('Event code %d at mouse position is (%f,%f)',ibut,x,y))
>>> endfunction
>>>
>>> plot2d  <plot2d.html>()
>>> fig  =  gcf  <gcf.html>()  ;
>>> fig.event_handler  =  'my_eventhandler'  ;
>>> fig.event_handler_enable  =  "on"  ;
>>> //now:
>>> //   -  move the mouse over the graphic window
>>> //   -  press and release keys shifted or not with Ctrl pressed or not
>>> //   -  press button, wait a little release
>>> //   -  press and release button
>>> //   -  double-click button
>>>
>>> fig.event_handler_enable  =  "off"  ;  //suppress the event handler
>>> 	<a href="scilab://scilab.execexample/"> 	<a 
>>> href="scilab://scilab.editexample/">
>>>
>>>
>>> I fear I must retire to
>>> m=evstr(x_dialog(...)
>>> Jens
>>>
>>>
>>>
>>> ----------------------------------------------------------------------------
>>>
>>> Am 13.08.2014 11:12, schrieb mottelet [via Scilab / Xcos - Mailing 
>>> Lists Archives]:
>>>>
>>>> Hello,
>>>>
>>>> IMHO, the only way to trap a keypress and get the ascii (?) code is 
>>>> to use the event_handler callback of a figure :
>>>>
>>>> function handler(x,y,ibut)
>>>> //
>>>> endfunction
>>>>
>>>> f=gcf();
>>>> f.event_handler='handler';
>>>> f.event_handle_enable='on';
>>>>
>>>> On my computer, I have the following mapping
>>>>
>>>> left arrow pressed : ibut=37 (released=-37)
>>>> up arrow : 38
>>>> right arrow 39
>>>> down arrow 40
>>>>
>>>> The problem is that you need to have a figure opened, and that this 
>>>> figure must have the focus.
>>>>
>>>> S.
>>>>
>>>> Jens <[hidden email] 
>>>> </user/SendEmail.jtp?type=node&node=4031030&i=0>> a ?crit :
>>>>
>>>>> Hi Samuel,
>>>>> ASCII representation of up, down etc. would help me if I knew a Scilab
>>>>> command which puts the ascii value into a variable. input() is 
>>>>> definitely
>>>>> unable to do so.
>>>>>
>>>>> Jens
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> View this message in context: 
>>>>> http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031026.html
>>>>> Sent from the Scilab users - Mailing Lists Archives mailing list 
>>>>> archive at Nabble.com.
>>>>> _______________________________________________
>>>>> users mailing list
>>>>> [hidden email] </user/SendEmail.jtp?type=node&node=4031030&i=1>.<a 
>>>>> href="orghttp://lists.scilab.org/mailman/listinfo/users" 
>>>>> target="_blank">orghttp://lists.scilab.org/mailman/listinfo/users
>>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> users mailing list
>>>> [hidden email] </user/SendEmail.jtp?type=node&node=4031030&i=2>
>>>> http://lists.scilab.org/mailman/listinfo/users
>>>>
>>>>
>>>> ------------------------------------------------------------------------
>>>> If you reply to this email, your message will be added to the 
>>>> discussion below:
>>>> http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031030.html
>>>> To unsubscribe from [Scilab-users] Recognition of cursor key as 
>>>> input, click here.
>>>> NAML 
>>>> <http://mailinglists.scilab.org/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml>
>>>
>>>
>>> ------------------------------------------------------------------------
>>>
>>> View this message in context: Re: Recognition of cursor key as input 
>>> <http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031031.html>
>>> Sent from the Scilab users - Mailing Lists Archives mailing list 
>>> archive 
>>> <http://mailinglists.scilab.org/Scilab-users-Mailing-Lists-Archives-f2602246.html> 
>>> at Nabble.com.
>>>
>>
>>
>>
>> _______________________________________________
>> users mailing list
>> [hidden email] </user/SendEmail.jtp?type=node&node=4031032&i=1>
>> http://lists.scilab.org/mailman/listinfo/users
>>
>>
>> ------------------------------------------------------------------------
>> If you reply to this email, your message will be added to the 
>> discussion below:
>> http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031032.html 
>>
>> To unsubscribe from [Scilab-users] Recognition of cursor key as 
>> input, click here.
>> NAML 
>> <http://mailinglists.scilab.org/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> 
>>
>
>
> ------------------------------------------------------------------------
> View this message in context: Re: Recognition of cursor key as input 
> <http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031033.html>
> Sent from the Scilab users - Mailing Lists Archives mailing list 
> archive 
> <http://mailinglists.scilab.org/Scilab-users-Mailing-Lists-Archives-f2602246.html> 
> at Nabble.com.
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users

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From j.s.strom at hslmg.de  Wed Aug 13 15:53:27 2014
From: j.s.strom at hslmg.de (Jens)
Date: Wed, 13 Aug 2014 06:53:27 -0700 (PDT)
Subject: [Scilab-users] Recognition of cursor key as input
In-Reply-To: <53EB5DB3.1040002@utc.fr>
References: <loom.20140808T203020-227@post.gmane.org>
 <53E9FCAB.6020207@free.fr> <1407846472710-4031026.post@n3.nabble.com>
 <20140813111024.Horde.Hc-sr4Z-24Ie7jJkRN_21g1@webmail2.utc.fr>
 <53EB4646.1030000@hslmg.de>
 <20140813133946.Horde.RQL3UGFLYN6_5rnwvgA0xw1@webmail2.utc.fr>
 <53EB561A.20306@hslmg.de> <53EB5DB3.1040002@utc.fr>
Message-ID: <53EB6DBB.4020002@hslmg.de>

It works now on my installation, probably the way you designed it. In my 
case the graphic window does not open after starting the script by F5 or 
exec(...). And sometimes, when there /is/ a window accidently,  after 
LMC into it, it responds properly to up, left, right and even down. Thanks
------------------------------------------------------------

Am 13.08.2014 14:45, schrieb mottelet [via Scilab / Xcos - Mailing Lists 
Archives]:
> Hello,
>
> I presume you are not using scilab 5.5.0, change the function as follows :
>
> function key=waitforkeypress()
>     global _keypress
>     set(gcf(),'event_handler','handler');
>     set(gcf(),'event_handler_enable','on')
>     _keypress=0;
>     while ~_keypress
>         sleep(1)
>     end
>     set(gcf(),'event_handler_enable','off')
>     key=_keypress;
> endfunction





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From stephane.mottelet at utc.fr  Wed Aug 13 16:13:07 2014
From: stephane.mottelet at utc.fr (=?ISO-8859-1?Q?St=E9phane_Mottelet?=)
Date: Wed, 13 Aug 2014 16:13:07 +0200
Subject: [Scilab-users] Recognition of cursor key as input
In-Reply-To: <53EB6DBB.4020002@hslmg.de>
References: <loom.20140808T203020-227@post.gmane.org>
 <53E9FCAB.6020207@free.fr> <1407846472710-4031026.post@n3.nabble.com>
 <20140813111024.Horde.Hc-sr4Z-24Ie7jJkRN_21g1@webmail2.utc.fr>
 <53EB4646.1030000@hslmg.de>
 <20140813133946.Horde.RQL3UGFLYN6_5rnwvgA0xw1@webmail2.utc.fr>
 <53EB561A.20306@hslmg.de> <53EB5DB3.1040002@utc.fr>
 <53EB6DBB.4020002@hslmg.de>
Message-ID: <53EB7273.3050806@utc.fr>

Le 13/08/2014 15:53, Jens a ?crit :
> It works now on my installation, probably the way you designed it. In 
> my case the graphic window does not open after starting the script by F5
really strange... I think that you mean that the windows, if already 
open (or minimized, or docked), does not show up ?

> or exec(...). And sometimes, when there /is/ a window accidently,
There should not be any "accident"... Your Scilab installation 
/seems///to be broken, as I had never heard of such a chaotic behaviour./

/S./
/
> after LMC into it, it responds properly to up, left, right and even 
> down. Thanks
> ------------------------------------------------------------
>
> Am 13.08.2014 14:45, schrieb mottelet [via Scilab / Xcos - Mailing 
> Lists Archives]:
>> Hello,
>>
>> I presume you are not using scilab 5.5.0, change the function as 
>> follows :
>>
>> function key=waitforkeypress()
>>     global _keypress
>>     set(gcf(),'event_handler','handler');
>>     set(gcf(),'event_handler_enable','on')
>>     _keypress=0;
>>     while ~_keypress
>>         sleep(1)
>>     end
>>     set(gcf(),'event_handler_enable','off')
>>     key=_keypress;
>> endfunction
>
>
> ------------------------------------------------------------------------
> View this message in context: Re: Recognition of cursor key as input 
> <http://mailinglists.scilab.org/Scilab-users-Recognition-of-cursor-key-as-input-tp4031013p4031036.html>
> Sent from the Scilab users - Mailing Lists Archives mailing list 
> archive 
> <http://mailinglists.scilab.org/Scilab-users-Mailing-Lists-Archives-f2602246.html> 
> at Nabble.com.
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users

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From j.s.strom at hslmg.de  Wed Aug 13 17:57:28 2014
From: j.s.strom at hslmg.de (Jens)
Date: Wed, 13 Aug 2014 08:57:28 -0700 (PDT)
Subject: [Scilab-users] Recognition of cursor key as input
In-Reply-To: <53EB7273.3050806@utc.fr>
References: <loom.20140808T203020-227@post.gmane.org>
 <53E9FCAB.6020207@free.fr> <1407846472710-4031026.post@n3.nabble.com>
 <20140813111024.Horde.Hc-sr4Z-24Ie7jJkRN_21g1@webmail2.utc.fr>
 <53EB4646.1030000@hslmg.de>
 <20140813133946.Horde.RQL3UGFLYN6_5rnwvgA0xw1@webmail2.utc.fr>
 <53EB561A.20306@hslmg.de> <53EB5DB3.1040002@utc.fr>
 <53EB6DBB.4020002@hslmg.de> <53EB7273.3050806@utc.fr>
Message-ID: <53EB8AC3.1050605@hslmg.de>

After having taken the event handler route I love "messagebox", 
"x_dialog" or "x_choices". Especially in my application a graphic window 
would be unmotivated. There is no graphic to display.
Jens
--------------------------------------------------------------------

Am 13.08.2014 16:14, schrieb mottelet [via Scilab / Xcos - Mailing Lists 
Archives]:
> Le 13/08/2014 15:53, Jens a ?crit :
>> It works now on my installation, probably the way you designed it. In 
>> my case the graphic window does not open after starting the script by F5
> really strange... I think that you mean that the windows, if already 
> open (or minimized, or docked), does not show up ? /Correct/
>
>> or exec(...). And sometimes, when there /is/ a window accidently,
> There should not be any "accident"... Your Scilab installation 
> /seems///to be broken, as I had never heard of such a chaotic 
> behaviour./  Broken only in this context
>
> /S.//





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From eduardo.torrecillas at gmail.com  Wed Aug 13 19:08:28 2014
From: eduardo.torrecillas at gmail.com (Eduardo Torrecillas)
Date: Wed, 13 Aug 2014 14:08:28 -0300
Subject: [Scilab-users] calling a fortran subroutine inside scilab
Message-ID: <CADqPe=tie-W0aun-gTFRSR2+kq2zQFLF-Y8AsBDn-eNNKh9NEg@mail.gmail.com>

Hi all,

My question is about calling a fortran subroutine inside scilab. I have
been doing this for quite some time now, using ilib_for_link, and it works
neatly.

Recently I have tried to use a subroutine that does parallel processing
using openmp, but scilab just seems to ignore the compiling flag to
parallelize calculations. I know the subroutine works because I have used
it already, compiling the program into an executable and running it through
a terminal. But on scilab, the subroutine runs as if no openmp directives
had been called, even though I add the flag -fopenmp when calling
ilib_for_link.

Does anyone have an idea why this could be happening? I'll put some of my
code below. I'm using linux ubuntu 12.04 32bits and scilab 5.3.3. I also
tried using Ubuntu 12.04 64bits without success.

----------------------------------------------------------------------------------------------------------------------
function principal()

clear

clc

ulink()

stacksize(2.68e8)

    chdir('./Bibliotecas/Fortran/');

    link_name = ['fteste_openmp','fteste_openmp2'];
    flag  = "f";
    files = ['tipos.mod','fteste_openmp.f90','fteste_openmp2.f90'];
    libs  = [];


ilib_for_link(link_name,files,libs,flag,'','floader.sce','','','','-fopenmp','');

    exec floader.sce

    chdir('../')
    chdir('../')

end

n=100000

for i=1:n
    vec1(i,:)=[i 2*i 3*i]
end

tic()
//serial processing
[vec2]=call('fteste_openmp',npanel,1,'i',vec1,2,'d','out',[npanel,3],3,'d');
time=toc()

mprintf('T: %f s\n',tempo)

tic()
//parallel processing
[vec2]=call('fteste_openmp2',npanel,1,'i',vec1,2,'d','out',[npanel,3],3,'d');
time=toc()

mprintf('T: %f s\n',tempo)

endfunction
-----------------------------------------------------------------------------------------------------------------

Thanks a lot,

-- 
Eduardo Torrecillas
AER-09
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From l_mineva at yahoo.de  Wed Aug 13 09:38:45 2014
From: l_mineva at yahoo.de (lora mineva)
Date: Wed, 13 Aug 2014 08:38:45 +0100
Subject: [Scilab-users] Plotting complex function
Message-ID: <1407915525.36964.YahooMailNeo@web172703.mail.ir2.yahoo.com>

Hello,
i am new bei Scilab and i need a help. So?I'm trying to Plott dies complex Function:?
y=2.8+(12/(1+(%i*0.27*(%e^(150/(x+2.5))))));

and i wrote dies small programm:?
?
-->x=[0:10:140];
?
-->function [y]=f(x)
-->y=2.8+(12/(1+(%i*0.27*(%e^(150/(x+2.5))))));
-->endfunction
?
-->fplot2d(x,f)
?
-->xtitle("PA12","e","T")


So far, so good, but i plott only the real part and i can plott the?imaginary part from this function. Can you help me and tell?how does it work. Thak you!

best regards
Lora
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From marko.marton at wigner.mta.hu  Wed Aug 13 10:01:01 2014
From: marko.marton at wigner.mta.hu (=?ISO-8859-15?Q?M=E1rton_Mark=F3?=)
Date: Wed, 13 Aug 2014 10:01:01 +0200 (CEST)
Subject: [Scilab-users] Optimization question
In-Reply-To: <1407892301423-4031028.post@n3.nabble.com>
References: <1407892301423-4031028.post@n3.nabble.com>
Message-ID: <alpine.DEB.1.00.1408130944470.3560@mail.szfki.hu>

Dear Eduardo,

Maybe a stupid question, but why do you want to optimize numerically
a second order polinom?
What's the problem with the analytical solution?

Marci


--
              M?rton Mark?

     Wigner Research Centre for Physics
       Neutron Spectroscopy Department

address: Budapest, Konkoly Th. M. str 29-33, H-1121, Hungary
mail:    Budapest, P.O. Box 49 H-1525 HUNGARY
tel:     +36/1-392 2222/1682
fax:     +36/1-392 2501
email:   marko at szfki.hu


On Tue, 12 Aug 2014, ebmb.sci wrote:

> Hello All,
> please, could someone guide me on how to proceed to minimize the following
> polynomial using functions optim and numdiff. Since the parameters A and B
> have different constraints (i.e.: A = [0 1] and B = [1000 2000]), how must I
> sign the values and pass them for optim? I implemented a basic script to try
> to do it, but it always returns with wrong results.
>
> function f = myFc(x)
>   a = x(1);
>   b = x(2);
>   f = 0.000791 + 0.000027*a + -0.000037*b + 0.000180*a*b + -0.000126*a^2 +
> -0.000162*b^2;
> endfunction
>
> function [f, g, ind] = myFcCost(x, ind)
>        f = myFc(x);
>        g = numdiff(myFc, x);
> endfunction
>
> x0 = [0 1];
>
> [fopt, xopt] = optim(myFcCost, 'b', [0 1], [1000 2000], x0);
>
> I am so thanks for any help in advance!
>
> Best regards,
> Eduardo.
>
>
>
>
> --
> View this message in context: http://mailinglists.scilab.org/Optimization-question-tp4031028.html
> Sent from the Scilab users - Mailing Lists Archives mailing list archive at Nabble.com.
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users
>

From ebmb.sci at gmail.com  Wed Aug 13 14:39:20 2014
From: ebmb.sci at gmail.com (ebmb.sci)
Date: Wed, 13 Aug 2014 05:39:20 -0700 (PDT)
Subject: [Scilab-users] Optimization question
In-Reply-To: <53EB1061.1040506@utc.fr>
References: <1407892301423-4031028.post@n3.nabble.com>
 <53EB1061.1040506@utc.fr>
Message-ID: <1407933560615-4031034.post@n3.nabble.com>

 Dear Mottelet,
 thanks a lot for your tip. It was very valuable for follow with my work.
However, with the suggested modifications:

x0 = [0.01 1001];
[fopt, xopt] = optim(myFcCost, 'b', [0 1000], [1 2000], x0);

I always reaches the same results:

xopt = 0 2000
fopt = -6.480732e+02

 Please, could you help me again with this problem?

 Thanks in advance for your assistance!

 Best regards,
 Eduardo.




--
View this message in context: http://mailinglists.scilab.org/Optimization-question-tp4031028p4031034.html
Sent from the Scilab users - Mailing Lists Archives mailing list archive at Nabble.com.


From j.s.strom at hslmg.de  Thu Aug 14 17:49:06 2014
From: j.s.strom at hslmg.de (Jens Simon Strom)
Date: Thu, 14 Aug 2014 17:49:06 +0200
Subject: [Scilab-users] Plotting complex function
In-Reply-To: <1407915525.36964.YahooMailNeo@web172703.mail.ir2.yahoo.com>
References: <1407915525.36964.YahooMailNeo@web172703.mail.ir2.yahoo.com>
Message-ID: <53ECDA72.4010101@hslmg.de>

See identical problem in gomatlab forum.
KG

Am 13.08.2014 09:38, schrieb lora mineva:
> Hello,
> i am new bei Scilab and i need a help. So I'm trying to Plott dies 
> complex Function:
> y=2.8+(12/(1+(%i*0.27*(%e^(150/(x+2.5))))));
>
> and i wrote dies small programm:
> -->x=[0:10:140];
> -->function [y]=f(x)
> -->y=2.8+(12/(1+(%i*0.27*(%e^(150/(x+2.5))))));
> -->endfunction
> -->fplot2d(x,f)
> -->xtitle("PA12","e","T")
>
> So far, so good, but i plott only the real part and i can plott 
> the imaginary part from this function. Can you help me and tell how 
> does it work. Thak you!
>
> best regards
> Lora
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users

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From contact at pierre-vuillemin.fr  Thu Aug 14 15:12:13 2014
From: contact at pierre-vuillemin.fr (Pierre Vuillemin)
Date: Thu, 14 Aug 2014 15:12:13 +0200
Subject: [Scilab-users] About the complex inverse tangent function
Message-ID: <1408021933.2167.17.camel@Pelisse.lan>

Hello,

my question concerns the practical implementation of the complex inverse
tangent function atan(z) in Scilab.

In the source code of Scilab, the file "watan.f" (in the elementary
functions) seems to compute this function as

atan(z) = i/2 log((i+z)/(i-z)),

where i^2=-1.

Yet, when comparing the result given by atan(z) and %i/2*log((%i+z)/(%
i-z)) in Scilab, they are different for every point on the imaginary
axis excepted in the unit circle. For instance,

z = 2*%i
disp([atan(z),%i/2*log((%i+z)/(%i-z))])

-> 1.5707963 + 0.5493061i  - 1.5707963 + 0.5493061i

I would like to know where does the difference comes from and if
'watan.f' is really the file that computes atan.

The values obtained with the function atan(z) seem to coincide with
another definition of atan(z) :

atan(z) = 1/(2i) [log(1+iz)-log(1-iz)]

which is used by Mathematica and the function 'catan' in linux.

Pierre










From sgougeon at free.fr  Thu Aug 14 19:46:58 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Thu, 14 Aug 2014 19:46:58 +0200
Subject: [Scilab-users] About the complex inverse tangent function
In-Reply-To: <1408021933.2167.17.camel@Pelisse.lan>
References: <1408021933.2167.17.camel@Pelisse.lan>
Message-ID: <53ECF612.9070605@free.fr>

Hello,

Le 14/08/2014 15:12, Pierre Vuillemin a ?crit :
> Hello,
>
> my question concerns the practical implementation of the complex inverse
> tangent function atan(z) in Scilab.
>
> In the source code of Scilab, the file "watan.f" (in the elementary
> functions) seems to compute this function as
>
> atan(z) = i/2 log((i+z)/(i-z)),
>
> where i^2=-1.
>
> Yet, when comparing the result given by atan(z) and %i/2*log((%i+z)/(%
> i-z)) in Scilab, they are different for every point on the imaginary
> axis excepted in the unit circle. For instance,
>
> z = 2*%i
> disp([atan(z),%i/2*log((%i+z)/(%i-z))])
>
> -> 1.5707963 + 0.5493061i  - 1.5707963 + 0.5493061i
With Scilab 5.5.0 on Windows 7 x64:
-->z = 2*%i
  z  =
     2.i
-->disp([atan(z),%i/2*log((%i+z)/(%i-z))])

     1.5707963 + 0.5493061i    1.5707963 + 0.5493061i

This is a strange result for the log expression, since we could expect 
-1.57.. rather than 1.57...
Indeed, with z = 2.i, we have: (i+z)/(i-z) = 3i/ -i = -3 = 3.i^2 => 
ln(3.i^2) = ln(3) + 2 ln(i)
with i = exp(i.pi/2), so : .. = ln(3) + 2.i.pi/2 = ln(3) + i.pi
Hence: i/2 * ln((i+z)/(i-z)) = i.ln(3)/2 - pi/2 : the real part is < 0.
If there is an issue, it could be with  log() rather than with atan().
...

> I would like to know where does the difference comes from and if
> 'watan.f' is really the file that computes atan.
>
> The values obtained with the function atan(z) seem to coincide with
> another definition of atan(z) :
>
> atan(z) = 1/(2i) [log(1+iz)-log(1-iz)]
>
> which is used by Mathematica and the function 'catan' in linux.

1/(2i) [log(1+iz)-log(1-iz)]
   = -i/2 log((1+iz)/(1-iz))
   = -i/2 log(i(1+iz) / i(1-iz))
   = -i/2 log((i-z)/(i+z))
   =  i/2 log((i+z)/(i-z))
So, both forms that you mention and that you compare to Scilab result are equivalent.

HTH
Samuel

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From sgougeon at free.fr  Thu Aug 14 19:55:27 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Thu, 14 Aug 2014 19:55:27 +0200
Subject: [Scilab-users] About the complex inverse tangent function
In-Reply-To: <53ECF612.9070605@free.fr>
References: <1408021933.2167.17.camel@Pelisse.lan> <53ECF612.9070605@free.fr>
Message-ID: <53ECF80F.8060300@free.fr>

Le 14/08/2014 19:46, Samuel Gougeon a ?crit :
> -->disp([atan(z),%i/2*log((%i+z)/(%i-z))])
>
>     1.5707963 + 0.5493061i    1.5707963 + 0.5493061i
>
> This is a strange result for the log expression, since we could expect 
> -1.57.. rather than 1.57...
> Indeed, with z = 2.i, we have: (i+z)/(i-z) = 3i/ -i = -3 = 3.i^2 => 
> ln(3.i^2) = ln(3) + 2 ln(i)
> with i = exp(i.pi/2), so : .. = ln(3) + 2.i.pi/2 = ln(3) + i.pi
> Hence: i/2 * ln((i+z)/(i-z)) = i.ln(3)/2 - pi/2 : the real part is < 0.
> If there is an issue, it could be with  log() rather than with atan().
Actually, we have -3 = 3.exp(i.pi) but also = 3.exp(-i.pi), leading to 
ln(3) - i.pi .. and so i.ln(3)/2 + pi/2 :
The real part is here modulo pi (due to the i/2 factor) ; so the Scilab 
output is correct for the log.

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From contact at pierre-vuillemin.fr  Fri Aug 15 10:52:39 2014
From: contact at pierre-vuillemin.fr (Pierre Vuillemin)
Date: Fri, 15 Aug 2014 10:52:39 +0200
Subject: [Scilab-users] About the complex inverse tangent function
In-Reply-To: <53ECF612.9070605@free.fr>
References: <1408021933.2167.17.camel@Pelisse.lan> <53ECF612.9070605@free.fr>
Message-ID: <1408092759.2112.18.camel@Pelisse.lan>

Le jeudi 14 ao?t 2014 ? 19:46 +0200, Samuel Gougeon a ?crit :
> Hello,
> 
> Le 14/08/2014 15:12, Pierre Vuillemin a ?crit :
> 
> > Hello,
> > 
> > my question concerns the practical implementation of the complex inverse
> > tangent function atan(z) in Scilab.
> > 
> > In the source code of Scilab, the file "watan.f" (in the elementary
> > functions) seems to compute this function as
> > 
> > atan(z) = i/2 log((i+z)/(i-z)),
> > 
> > where i^2=-1.
> > 
> > Yet, when comparing the result given by atan(z) and %i/2*log((%i+z)/(%
> > i-z)) in Scilab, they are different for every point on the imaginary
> > axis excepted in the unit circle. For instance,
> > 
> > z = 2*%i
> > disp([atan(z),%i/2*log((%i+z)/(%i-z))])
> > 
> > -> 1.5707963 + 0.5493061i  - 1.5707963 + 0.5493061i
> With Scilab 5.5.0 on Windows 7 x64:
> -->z = 2*%i
>  z  =
>     2.i  
> -->disp([atan(z),%i/2*log((%i+z)/(%i-z))])
>  
>     1.5707963 + 0.5493061i    1.5707963 + 0.5493061i  
> 

I am on a 64-bit linux environment (Debian Jessie, Scilab 5.5.0), the
result would be OS-dependent?

> This is a strange result for the log expression, since we could expect
> -1.57.. rather than 1.57...
> Indeed, with z = 2.i, we have: (i+z)/(i-z) = 3i/ -i = -3 = 3.i^2 =>
> ln(3.i^2) = ln(3) + 2 ln(i)
> with i = exp(i.pi/2), so : .. = ln(3) + 2.i.pi/2 = ln(3) + i.pi
> Hence: i/2 * ln((i+z)/(i-z)) = i.ln(3)/2 - pi/2 : the real part is <
> 0.
> If there is an issue, it could be with  log() rather than with atan().
> ...
> > I would like to know where does the difference comes from and if
> > 'watan.f' is really the file that computes atan.
> > 
> > The values obtained with the function atan(z) seem to coincide with
> > another definition of atan(z) :
> > 
> > atan(z) = 1/(2i) [log(1+iz)-log(1-iz)]
> > 
> > which is used by Mathematica and the function 'catan' in linux.
> 1/(2i) [log(1+iz)-log(1-iz)] 
>   = -i/2 log((1+iz)/(1-iz)) 
>   = -i/2 log(i(1+iz) / i(1-iz)) 
>   = -i/2 log((i-z)/(i+z)) 
>   =  i/2 log((i+z)/(i-z))
> So, both forms that you mention and that you compare to Scilab result are equivalent.
> 
> HTH
> Samuel
> 

The relation

log(ab) = log(a) + log(b) 

only stands for the multi-valued logarithm function (or modulo pi). With
the principal value of the log, defined as

log(z) = ln(|z|) + i * arg(z)

where -pi<arg(z)<=pi, this is not true as soon as -pi<arg(a)+arg(b)<=
pi. In particular, it is not true on the branch cut (- inf, 0].
For instance,

log(-1) = j pi

log(-1)+log(-1) = 2j pi != log(1) = 0

This is merely a problem of convention in the definitions, but this
leads to differences in the value of the atan on its branch cuts.




> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users




From sgougeon at free.fr  Fri Aug 15 11:28:35 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Fri, 15 Aug 2014 11:28:35 +0200
Subject: [Scilab-users] About the complex inverse tangent function
In-Reply-To: <1408092759.2112.18.camel@Pelisse.lan>
References: <1408021933.2167.17.camel@Pelisse.lan> <53ECF612.9070605@free.fr>
 <1408092759.2112.18.camel@Pelisse.lan>
Message-ID: <53EDD2C3.2050008@free.fr>

Hello Pierre,

Le 15/08/2014 10:52, Pierre Vuillemin a ?crit :
> Le jeudi 14 ao?t 2014 ? 19:46 +0200, Samuel Gougeon a ?crit :
>> With Scilab 5.5.0 on Windows 7 x64:
>> -->z = 2*%i
>>   z  =
>>      2.i
>> -->disp([atan(z),%i/2*log((%i+z)/(%i-z))])
>>   
>>      1.5707963 + 0.5493061i    1.5707963 + 0.5493061i
> I am on a 64-bit linux environment (Debian Jessie, Scilab 5.5.0), the
> result would be OS-dependent?
It is possible. Some packages or/and some single functions -- including 
maths ones -- depend on the OS.
> The relation
>
> log(ab) = log(a) + log(b)
>
> only stands for the multi-valued logarithm function (or modulo pi). With
> the principal value of the log, defined as
>
> log(z) = ln(|z|) + i * arg(z)
>
> where -pi<arg(z)<=pi,
Is this interval conventionnaly standard for the principal value, rather 
than -pi <= arg(z) < pi ?
> this is not true as soon as -pi<arg(a)+arg(b)<=
> pi. In particular, it is not true on the branch cut (- inf, 0].
> For instance,
>
> log(-1) = j pi
>
> log(-1)+log(-1) = 2j pi != log(1) = 0
It is, modulo 2.pi : i.2.pi [2.pi] ~ i.0 = 0
> This is merely a problem of convention in the definitions, but this
> leads to differences in the value of the atan on its branch cuts.
Indeed. Both results that you get from atan and log on Linux are 
correct, and equivalent.
Results from win7 are equal and agree with the standard interval (-pi, pi].

Samuel



From contact at pierre-vuillemin.fr  Fri Aug 15 14:26:30 2014
From: contact at pierre-vuillemin.fr (Pierre Vuillemin)
Date: Fri, 15 Aug 2014 14:26:30 +0200
Subject: [Scilab-users] About the complex inverse tangent function
In-Reply-To: <53EDD2C3.2050008@free.fr>
References: <1408021933.2167.17.camel@Pelisse.lan>
 <53ECF612.9070605@free.fr> <1408092759.2112.18.camel@Pelisse.lan>
 <53EDD2C3.2050008@free.fr>
Message-ID: <1408105590.4284.38.camel@Pelisse.lan>

Le vendredi 15 ao?t 2014 ? 11:28 +0200, Samuel Gougeon a ?crit :
> Hello Pierre,
> 
> Le 15/08/2014 10:52, Pierre Vuillemin a ?crit :
> > Le jeudi 14 ao?t 2014 ? 19:46 +0200, Samuel Gougeon a ?crit :
> >> With Scilab 5.5.0 on Windows 7 x64:
> >> -->z = 2*%i
> >>   z  =
> >>      2.i
> >> -->disp([atan(z),%i/2*log((%i+z)/(%i-z))])
> >>   
> >>      1.5707963 + 0.5493061i    1.5707963 + 0.5493061i
> > I am on a 64-bit linux environment (Debian Jessie, Scilab 5.5.0), the
> > result would be OS-dependent?
> It is possible. Some packages or/and some single functions -- including 
> maths ones -- depend on the OS.
> > The relation
> >
> > log(ab) = log(a) + log(b)
> >
> > only stands for the multi-valued logarithm function (or modulo pi). With
> > the principal value of the log, defined as
> >
> > log(z) = ln(|z|) + i * arg(z)
> >
> > where -pi<arg(z)<=pi,
> Is this interval conventionnaly standard for the principal value, rather 
> than -pi <= arg(z) < pi ?

I have considered the same definitions as in 

(Section 4.1.2)
Handbook of Mathematical Functions: With Formulas, Graphs, and
Mathematical tables
Milton Abramowitz,Irene A. Stegun

or 

Branch Cuts for Complex Elementary Functions or Much Ado About Nothing's
Sign Bit 
W. Kahan 

The same domain for the principal value is used by Wolfram,
http://mathworld.wolfram.com/ComplexArgument.html

by Matlab, 
http://www.mathworks.fr/fr/help/symbolic/mupad_ref/arg.html

and seems to be used by Scilab as well
https://help.scilab.org/docs/5.5.0/en_US/atan.html

> > this is not true as soon as -pi<arg(a)+arg(b)<=
> > pi. In particular, it is not true on the branch cut (- inf, 0].
> > For instance,
> >
> > log(-1) = j pi
> >
> > log(-1)+log(-1) = 2j pi != log(1) = 0
> It is, modulo 2.pi : i.2.pi [2.pi] ~ i.0 = 0

The relation is also violated for any complex in the upper left half
plane, thus the modulo operation is not very well suited here.

Something less ambiguous seems to use the "unwinding number" :

The unwinding Number (R.M. Corless and D.J. Jeffrey) :
http://www.apmaths.uwo.ca/~djeffrey/Offprints/editors.pdf

which basically consists in adding 2Ki pi whenever required to make
standard relations work everywhere in the complex plane.

> > This is merely a problem of convention in the definitions, but this
> > leads to differences in the value of the atan on its branch cuts.
> Indeed. Both results that you get from atan and log on Linux are 
> correct, and equivalent.
> Results from win7 are equal and agree with the standard interval (-pi, pi].
> 
> Samuel
> 

I perfectly understand that each definition is equivalent "up to 2K i
pi", yet from a numerical point of view, it seems to me that they cannot
be considered as equivalent. 

But the thing that really intrigues me is why the built-in function of
atan in Scilab does not lead to the same result (in the exact sense) as
the formulation in the commentary of the code 'watan.f'. 

I will try to determine what is really called by Scilab. The OS atan
would correspond.

Thank you for your answers. :)

Pierre
 

> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users




From samuel.enibe at unn.edu.ng  Sat Aug 16 15:00:00 2014
From: samuel.enibe at unn.edu.ng (samuel.enibe at unn.edu.ng)
Date: Sat, 16 Aug 2014 14:00:00 +0100
Subject: [Scilab-users] Use of automatic function without one or
	specification tests
Message-ID: <PrXTPN4JNZGJ.PVnSt3l3@smtp.gmail.com>

I would like to use the automatic function in the Grocer SCILAB package to eliminate some non significant variables in a linear regression problem. The function ols runs successfully on the data. In contrast, the function automatic runs partially, suggesting that it should be run without the specification tests. Is there any way to eliminate one or more of the specification tests?
The user manual is not clear on this.
Your suggestions will be highly appropriated.
Samuel Enibe 



From paul.carrico at free.fr  Sun Aug 17 12:55:47 2014
From: paul.carrico at free.fr (paul.carrico at free.fr)
Date: Sun, 17 Aug 2014 12:55:47 +0200 (CEST)
Subject: [Scilab-users] Real time acquisition in Scilab
Message-ID: <1645283740.28474984.1408272947024.JavaMail.root@zimbra5-e1.priv.proxad.net>

Dear All,

I'm a complete beginner in such item and I think it has ever been implemented in Scilab : what module can handle real time (signal) plotting ?
(google searches has been unsuccessfull using such words or close ones)

Thanks

Paul


From akhorshidi at live.com  Sun Aug 17 20:28:24 2014
From: akhorshidi at live.com (A Khorshidi)
Date: Sun, 17 Aug 2014 11:28:24 -0700 (PDT)
Subject: [Scilab-users] Real time acquisition in Scilab
In-Reply-To: <1645283740.28474984.1408272947024.JavaMail.root@zimbra5-e1.priv.proxad.net>
References: <1645283740.28474984.1408272947024.JavaMail.root@zimbra5-e1.priv.proxad.net>
Message-ID: <1408300104194-4031053.post@n3.nabble.com>

Hi; 

First about data acquisition,..
It depends on what type of i/o device you intend to choose and which
communication interfaces you wanna use. 
So, all you need which can find in the following links: 
https://atoms.scilab.org/categories/instruments_control 
and 
http://hart.sourceforge.net/

Also there are some other tools which have developed based on Scilab and
Scicoslab , but due to this reason that they are not opensource I?m not keen
on referring to them. ;) 

But about real-time plotting,..
Attached you will find a sample function which can be used to plot the data
acquired in real-time. 
To read characters from the serial buffer this function use ?serialport?
toolbox. 

HTH, 
Mehran
_



Paul Carrico wrote
> Dear All,
> 
> I'm a complete beginner in such item and I think it has ever been
> implemented in Scilab : what module can handle real time (signal) plotting
> ?
> (google searches has been unsuccessfull using such words or close ones)
> 
> Thanks
> 
> Paul
> _______________________________________________
> users mailing list

> users at .scilab

> http://lists.scilab.org/mailman/listinfo/users

rtPlot.zip <http://mailinglists.scilab.org/file/n4031053/rtPlot.zip>  





--
View this message in context: http://mailinglists.scilab.org/Scilab-users-Real-time-acquisition-in-Scilab-tp4031052p4031053.html
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From samuel.enibe at unn.edu.ng  Mon Aug 18 00:01:58 2014
From: samuel.enibe at unn.edu.ng (Samuel Enibe)
Date: Sun, 17 Aug 2014 23:01:58 +0100
Subject: [Scilab-users] Use of automatic function without one or more
	specification tests
Message-ID: <CAJKcLoWYE7nrwv3v-XE7JoSgQaPd_+LiuVQ_SPztKLQJEJbYLg@mail.gmail.com>

I would like to use the *automatic* function in the Grocer SCILAB package
to eliminate some non significant variables in a linear regression problem.
The function *ols* runs successfully on the data. In contrast, the function
*automatic* runs partially, suggesting that it should be run without the
specification tests. Is there any way to eliminate one or more of the
specification tests?
The user manual is not clear on this.
Your suggestions will be highly appropriated.

Samuel Enibe
University of Nigeria, Nsukka
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From xzf16 at 163.com  Mon Aug 18 04:15:18 2014
From: xzf16 at 163.com (=?GBK?B?0OzVvw==?=)
Date: Mon, 18 Aug 2014 10:15:18 +0800 (CST)
Subject: [Scilab-users] A question about plotting
Message-ID: <4f34f6aa.a2fe.147e6e5b02a.Coremail.xzf16@163.com>




 

Hi , All:

 

I have a question about plotting.

 

I want to plot 2 lines in a graphic , so I type the command as below:

 

-->x=linspace(0,2*%pi,40);

 

-->y1=sin(x)

 

-->y2=cos(x);

 

-->X=[x,x];

 

-->Y=[y1,y2];

 

Then , I type the plot command :

 

-->plot(x,y1,x,y2);  

 

The result is shown as below:

 

 

But when I type a command as below:

 

-->plot(X,Y);

 

The result is :

 

It  has an additional line.

 

Why will this line appear?

 

Thanks for your reply.

 

 

 

 
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From ebmb.sci at gmail.com  Thu Aug 14 13:45:02 2014
From: ebmb.sci at gmail.com (ebmb.sci)
Date: Thu, 14 Aug 2014 04:45:02 -0700 (PDT)
Subject: [Scilab-users] Optimization question
In-Reply-To: <alpine.DEB.1.00.1408130944470.3560@mail.szfki.hu>
References: <1407892301423-4031028.post@n3.nabble.com>
 <alpine.DEB.1.00.1408130944470.3560@mail.szfki.hu>
Message-ID: <1408016702829-4031042.post@n3.nabble.com>

Dear M?rton,
I am using these functions to identify the points A and B that minimizes (or
sometimes maximizes) this problem. Hence, I thought the optim could be the
best solution to do this, since I must explore the search space. However, as
said previously, using the intervals [0 1000] and [1 2000] I always get the
same results. Please, do you have any suggestions to help me?

Thank you so much for your attention!

Best regards,
Eduardo.



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From gcinumuzi at live.co.za  Sat Aug 16 16:33:46 2014
From: gcinumuzi at live.co.za (Gcinumuzi Ngwenya)
Date: Sat, 16 Aug 2014 16:33:46 +0200
Subject: [Scilab-users] Scilab
Message-ID: <DUB120-W40BFD510FDA1BC0BB7FF9F86D60@phx.gbl>

Good Afternoon ladies and gentlemen
 
My name is Gcinumuzi Ngwenya from South Africa. I am doing my BTech in Chemical Engineering and right now we have been introduced to Scilab but I am really struggling at the moment. Can you guys please help me with this two questions?
 
1. I have been plotting a transfer function graph on scilab and I see that on the x-axis it starts at 1 and end up on the value which I entered for final integration time, what informs scilab or the graph to start at 1, or what is the reason for it to start at 1? I got this graph when I was doing an example for the beginners on scilab website
 
2. what is meant by buffer size on the simulation/setup menu ?
 
3. is there a document that can explain to me the function of each palette on xcos?
 
Thanking you in advance for your assistance 
 
Best Regards 
 
Gcinumuzi
 		 	   		  
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From tom_engay at yahoo.com  Sun Aug 17 05:59:06 2014
From: tom_engay at yahoo.com (Einstom Engay)
Date: Sun, 17 Aug 2014 11:59:06 +0800
Subject: [Scilab-users] Plot error
Message-ID: <1408247946.438.YahooMailNeo@web190901.mail.sg3.yahoo.com>

Hi,

I have previously used the function plot and it worked well. But, every time i used it now it outputs the error 21.?

-->x = [-5:5]
?x ?=
?
? - 5. ?- 4. ?- 3. ?- 2. ?- 1. ? ?0. ? ?1. ? ?2. ? ?3. ? ?4. ? ?5. ?
?
-->plot(x)
?!--error 21?
Invalid index.
at line ? ? ?14 of function %h_e called by : ?
at line ? ? ?15 of function _update_shaded_plots called by : ?
at line ? ? ?91 of function _compute_data_bounds called by : ?
at line ? ? 327 of function _mainPlot called by : ?
at line ? ? ?28 of function plot called by : ?
plot(x)
?

I am a windows 7 user. Please help me fix this.
Thanks a lot,

Tom
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From tom_engay at yahoo.com  Sun Aug 17 06:09:14 2014
From: tom_engay at yahoo.com (tom)
Date: Sat, 16 Aug 2014 21:09:14 -0700 (PDT)
Subject: [Scilab-users] Plot Error 21
Message-ID: <1408248554079-4031051.post@n3.nabble.com>

Hi,

I have previously used the function plot and it worked well. But, every time
i use it now it outputs error 21. 

-->x = [-5:5]
 x  =
 
  - 5.  - 4.  - 3.  - 2.  - 1.    0.    1.    2.    3.    4.    5.  
 
-->plot(x)
 !--error 21 
Invalid index.
at line      14 of function %h_e called by :  
at line      15 of function _update_shaded_plots called by :  
at line      91 of function _compute_data_bounds called by :  
at line     327 of function _mainPlot called by :  
at line      28 of function plot called by :  
plot(x)
 

I am a windows 7 user. Please help me fix this.
Thanks a lot,

Tom



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From paul.bignier at scilab-enterprises.com  Mon Aug 18 08:53:03 2014
From: paul.bignier at scilab-enterprises.com (Paul Bignier)
Date: Mon, 18 Aug 2014 08:53:03 +0200
Subject: [Scilab-users] A question about plotting
In-Reply-To: <4f34f6aa.a2fe.147e6e5b02a.Coremail.xzf16@163.com>
References: <4f34f6aa.a2fe.147e6e5b02a.Coremail.xzf16@163.com>
Message-ID: <53F1A2CF.8000205@scilab-enterprises.com>


Hello,

When you type ' plot(X,Y) ', Scilab links together the consecutive 
[X(i),Y(i)] pairs.
In your example, X(40)~6.28 and X(41)=0.
So [X(40), Y(40)] is connected to [X(41), Y(41)], and the "additional 
line" represents that simple connection.

' plot(x,y1,x,y2); ' considers [x, y1] and [x, y2] as two distinct 
curves, so they are not linked together.

Hope this helps,
Regards,
Paul



On 08/18/2014 04:15 AM, ?? wrote:
>
> Hi , All:
>
> I have a question about plotting.
>
> I want to plot 2 lines in a graphic , so I type the command as below:
>
> -->x=linspace(0,2*%pi,40);
>
> -->y1=sin(x)
>
> -->y2=cos(x);
>
> -->X=[x,x];
>
> -->Y=[y1,y2];
>
> Then , I type the plot command :
>
> -->plot(x,y1,x,y2);
>
> The result is shown as below:
>
> Graphic window number 0 (2).bmp
>
> But when I type a command as below:
>
> -->plot(X,Y);
>
> The result is :
>
> Graphic window number 0.bmp
>
> It  has an additional line.
>
> Why will this line appear?
>
> Thanks for your reply.
>
>
>
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users

-- 
Paul BIGNIER
Development engineer
-----------------------------------------------------------
Scilab Enterprises
143bis rue Yves Le Coz - 78000 Versailles, France
Phone: +33.1.80.77.04.69
http://www.scilab-enterprises.com

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From sgougeon at free.fr  Mon Aug 18 11:12:37 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Mon, 18 Aug 2014 11:12:37 +0200
Subject: [Scilab-users] Plot error
In-Reply-To: <1408247946.438.YahooMailNeo@web190901.mail.sg3.yahoo.com>
References: <1408247946.438.YahooMailNeo@web190901.mail.sg3.yahoo.com>
Message-ID: <53F1C385.5030906@free.fr>

Hello,

Le 17/08/2014 05:59, Einstom Engay a ?crit :
> Hi,
>
> I have previously used the function plot and it worked well. But, 
> every time i used it now it outputs the error 21.
>
> -->x = [-5:5]
>  x  =
>   - 5.  - 4.  - 3.  - 2.  - 1.    0.    1.    2.    3.    4.    5.
> -->plot(x)
>  !--error 21
> Invalid index.
> at line  14 of function %h_e called by :
> at line  15 of function _update_shaded_plots called by :
> at line  91 of function _compute_data_bounds called by :
> at line 327 of function _mainPlot called by :
> at line  28 of function plot called by :
> plot(x)
It works for me, also with Windows7.
You might do:
clear plot
and then try again.

Samuel

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From grocer.toolbox at gmail.com  Mon Aug 18 11:17:33 2014
From: grocer.toolbox at gmail.com (Eric Dubois)
Date: Mon, 18 Aug 2014 11:17:33 +0200
Subject: [Scilab-users] Use of automatic function without one or more
 specification tests
In-Reply-To: <CAJKcLoWYE7nrwv3v-XE7JoSgQaPd_+LiuVQ_SPztKLQJEJbYLg@mail.gmail.com>
References: <CAJKcLoWYE7nrwv3v-XE7JoSgQaPd_+LiuVQ_SPztKLQJEJbYLg@mail.gmail.com>
Message-ID: <CAGgDjFQcC4_3fcKnPrpYyjiY+XRKZgmGZAfrucdX44hN6bkCmQ@mail.gmail.com>

Hello Samuel

I don not know what you mean by "the function *automatic *runs partially",
but anyway, you can choose your specification tests with the option
'test=....' as shown in example 2 of the help file for automatic.

If you want to use only the Doornik-Hansen normality test, then run (shown
with the example of the help file):
--> global GROCERDIR
--> load(GROCERDIR+'/data/bdhenderic.dat') ;
-->
results=automatic('delts(lm1-lp)','lagts(lm1-lp-ly)','delts(lp)','rnet','delts(lagts(lm1-lp))',
'delts(lagts(2,lm1-lp))','delts(lagts(3,lm1-lp))','delts(lagts(4,lm1-lp))',...
'delts(ly)','delts(lagts(1,ly))',
'delts(lagts(2,ly))','delts(lagts(3,ly))','delts(lagts(4,ly))',...
'delts(delts(lp))','delts(delts(lagts(1,lp)))','delts(delts(lagts(2,lp)))','delts(delts(lagts(3,lp)))','delts(delts(lagts(4,lp)))',...
'delts(rnet)','delts(lagts(1,rnet))','delts(lagts(2,rnet))','delts(lagts(3,rnet))','delts(lagts(4,rnet))','const',...
'test=doornhans')

Alternativley if you want to obtain the display specification test, but
without them constarining the estimation, tou can impose a 0 p-value for
these tests with option 'eta=0':
-->  results=automatic('delts(lm1-lp)','lagts(lm1-lp-ly)','delts(lp)','rnet','delts(lagts(lm1-lp))',
'delts(lagts(2,lm1-lp))','delts(lagts(3,lm1-lp))','delts(lagts(4,lm1-lp))',...
'delts(ly)','delts(lagts(1,ly))',
'delts(lagts(2,ly))','delts(lagts(3,ly))','delts(lagts(4,ly))',...
'delts(delts(lp))','delts(delts(lagts(1,lp)))','delts(delts(lagts(2,lp)))','delts(delts(lagts(3,lp)))','delts(delts(lagts(4,lp)))',...
'delts(rnet)','delts(lagts(1,rnet))','delts(lagts(2,rnet))','delts(lagts(3,rnet))','delts(lagts(4,rnet))','const',...
'eta=0')

?ric.


2014-08-18 0:01 GMT+02:00 Samuel Enibe <samuel.enibe at unn.edu.ng>:

> I would like to use the *automatic* function in the Grocer SCILAB package
> to eliminate some non significant variables in a linear regression problem.
> The function *ols* runs successfully on the data. In contrast, the
> function *automatic* runs partially, suggesting that it should be run
> without the specification tests. Is there any way to eliminate one or more
> of the specification tests?
>  The user manual is not clear on this.
> Your suggestions will be highly appropriated.
>
> Samuel Enibe
> University of Nigeria, Nsukka
>
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users
>
>
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From sgougeon at free.fr  Mon Aug 18 11:20:44 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Mon, 18 Aug 2014 11:20:44 +0200
Subject: [Scilab-users] A question about plotting
In-Reply-To: <4f34f6aa.a2fe.147e6e5b02a.Coremail.xzf16@163.com>
References: <4f34f6aa.a2fe.147e6e5b02a.Coremail.xzf16@163.com>
Message-ID: <53F1C56C.7050801@free.fr>

Hello,

Your same questions posted on 2014-08-02 were answered two days latter, 
here:
http://mailinglists.scilab.org/Scilab-users-A-question-about-plotting-tp4031000p4031001.html

Samuel

Le 18/08/2014 04:15, ?? a ?crit :
>
> Hi , All:
>
> I have a question about plotting.
>
> I want to plot 2 lines in a graphic , so I type the command as below:
>
> -->x=linspace(0,2*%pi,40);
>
> -->y1=sin(x)
>
> -->y2=cos(x);
>
> -->X=[x,x];
>
> -->Y=[y1,y2];
>
> Then , I type the plot command :
>
> -->plot(x,y1,x,y2);
>
> The result is shown as below:
>
> Graphic window number 0 (2).bmp
>
> But when I type a command as below:
>
> -->plot(X,Y);
>
> The result is :
>
> Graphic window number 0.bmp
>
> It  has an additional line.
>
> Why will this line appear?
>
> Thanks for your reply.
>
>
>
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users

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From jrafaelbguerra at hotmail.com  Tue Aug 19 01:33:55 2014
From: jrafaelbguerra at hotmail.com (Rafael Guerra)
Date: Tue, 19 Aug 2014 00:33:55 +0100
Subject: [Scilab-users] Scilab 5.5 filled curve plotting issue?
Message-ID: <DUB109-DS8498063FB16ED32720C5ACCD40@phx.gbl>

Hello,

 

The attached simple Scilab script and data plots quite similar data as
filled curves in Scilab 5.5 (Win 7) with quite different results:



 

(PS: one dataset was shifted by 3 units along y-axis for display purposes
only; the problem is the same if no constant is added)

 

Any ideas of what can be causing the completely different behaviour of
plot2d / polyline_style = 5?

 

Thanks and regards,

Rafael G.

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From sravanaitha009 at gmail.com  Mon Aug 18 13:23:55 2014
From: sravanaitha009 at gmail.com (sravanaitha009)
Date: Mon, 18 Aug 2014 04:23:55 -0700 (PDT)
Subject: [Scilab-users] Reg: Reading an s2p file
Message-ID: <CAMOJw0GEp5_-6Ecm11hK842Yrq+fBrtyfhx4ojabFW=FRD+hwQ@mail.gmail.com>

Hello,

I have an s2p file with s parameters. Here my task is to write a script
about reading the s2p file. So please could you guide me in writing a
program about reading an s2p file.

Thanks,

Reagds,
Sravan




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From sgougeon at free.fr  Tue Aug 19 09:40:27 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Tue, 19 Aug 2014 09:40:27 +0200
Subject: [Scilab-users] Scilab 5.5 filled curve plotting issue?
In-Reply-To: <DUB109-DS8498063FB16ED32720C5ACCD40@phx.gbl>
References: <DUB109-DS8498063FB16ED32720C5ACCD40@phx.gbl>
Message-ID: <53F2FF6B.4090905@free.fr>

Hello Rafael,

Le 19/08/2014 01:33, Rafael Guerra a ?crit :
>
> Hello,
>
> The attached simple Scilab script and data plots quite similar data as 
> filled curves in Scilab 5.5 (Win 7) with quite different results:
>
This is a known bug reported 2 years ago in
http://bugzilla.scilab.org/show_bug.cgi?id=11632

> Any ideas of what can be causing the completely different behaviour of 
> plot2d / polyline_style = 5?
>
Please see comments #2 and #3 of the report.

Regards
Samuel

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From giri at leos.gov.in  Tue Aug 19 11:15:32 2014
From: giri at leos.gov.in (Giri)
Date: Tue, 19 Aug 2014 14:45:32 +0530
Subject: [Scilab-users] Reg: Reading an s2p file
In-Reply-To: <CAMOJw0GEp5_-6Ecm11hK842Yrq+fBrtyfhx4ojabFW=FRD+hwQ@mail.gmail.com>
References: <CAMOJw0GEp5_-6Ecm11hK842Yrq+fBrtyfhx4ojabFW=FRD+hwQ@mail.gmail.com>
Message-ID: <9088e4ad64cf32b50d909fe8e542b447@mail.leos.dos.gov.in>



On 2014-08-18 16:53, sravanaitha009 wrote: 

> Hello, 
> 
> I have an s2p file with s parameters. Here my task is to write a script about reading the s2p file. So please could you guide me in writing a program about reading an s2p file. 
> 
> Thanks, 
> 
> Reagds, 
> Sravan 
> 
> -------------------------
> View this message in context: Reg: Reading an s2p file [2]
> Sent from the Scilab users - Mailing Lists Archives mailing list archive [3] at Nabble.com.
> 
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users [1]

Hello Sravan: 

Please find below Scilab code to directly read and plot S2p files saved
from an Agilent PNA. 

Do let me know if it works for you. 

Sincerely, 

Giri 

// plotting 2 d VNA data and caclulated data.
// Plotting Insertion Loss, Isolation and Return Loss on different y
axes with common x axis.
// works only in scilab 5.1 and above
clear;
clf;

//Prompting user for input file name of first file
unix_w('dir *.s2p');
fname=input("What is the file name 1(OFF state?)","string");

fid=mopen(fname,'r');
// use niter=-1 to read up to the end of file

// Exracting the file name without extension .s2p
dot_pos=strindex(fname,'.');
fname_tit=part(fname,1:dot_pos-1);

header=mfscanf(1,fid,'%s'); 

while ~(header=="50")
header=mfscanf(1,fid,'%s'); 
end 
indata1=mfscanf(-1,fid,'%f %f %f %f %f %f %f %f %f'); 

freq_meas=indata1(:,1);
freq_meas=freq_meas./1e9;

s11_1_real=indata1(:,2);
s11_1_imag=indata1(:,3);
s12_1_real=indata1(:,4);
s12_1_imag=indata1(:,5);
s21_1_real=indata1(:,6);
s21_1_imag=indata1(:,7);
s22_1_real=indata1(:,8);
s22_1_imag=indata1(:,9);

fname=input("What is the file name 2 (ON STATE)?","string");

fid=mopen(fname,'r');
// use niter=-1 to read up to the end of file

// Exracting the file name without extension .s2p
dot_pos=strindex(fname,'.');
fname_tit=part(fname,1:dot_pos-1);

header=mfscanf(1,fid,'%s'); 

while ~(header=="50")
header=mfscanf(1,fid,'%s'); 
end 
indata2=mfscanf(-1,fid,'%f %f %f %f %f %f %f %f %f'); 

// indata=mfscanf(-1,fid,'%f %f');
freq_meas=indata2(:,1);
freq_meas=freq_meas./1e9;

s11_2_real=indata2(:,2);
s11_2_imag=indata2(:,3);
s12_2_real=indata2(:,4);
s12_2_imag=indata2(:,5);
s21_2_real=indata2(:,6);
s21_2_imag=indata2(:,7);
s22_2_real=indata2(:,8);
s22_2_imag=indata2(:,9);

//preparing data for output datafile

iso=s12_1_real;
il=s12_2_real;
rl=s11_2_real;

// Plotting IL, RL and ISO in the same plot
//*********** Added in Version 13 ************ 
scf(2);
plot2d(freq_meas,[rl iso],rect=[0.5,-40,11,0]);
xtitle("",["Frequency(GHz)"],["Return Loss/ Isolation (dB)"]);
xgrid();
a=gca();

poly1_1=a.children(1);
poly1=poly1_1.children(1);
poly1.thickness=2;
poly1.foreground=2;

//poly2=poly1_1.children(2);
//poly2.thickness=2;
//poly2.foreground=1;

xset("font size",4);

a=newaxes();
a.filled="off";
plot2d(freq_meas,il,axesflag=3,rect=[0.5,-1.0,11,0]);
a.axes_visible=["off","on","off"];
xtitle(fname_tit,[("")],["Insertion Loss (dB)"]);
xset("font size",4);

// xgrid();

// Setting polyline properties for plot

a=gca();
poly1_1=a.children(1);
poly1=poly1_1.children(1);
poly1.thickness=2;
poly1.foreground=5;

// Saving the figure in .scg format
// Attaching the .scg extension to file name
name_str=[fname_tit,".scg"];
fname_out=strcat(name_str);
save(fname_out,gcf());

// op_fname=[fname_tit,".dat"];

op_fname=[fname_tit,".dat"];
op_fname=strcat(op_fname);
fid_opfile=mopen(op_fname,'w');
for i=1:length(freq_meas)
mfprintf(fid_opfile,'%f %f %f %f n',freq_meas(i),iso(i),il(i),rl(i));
end

// mfprintf(fid_opfile,'%f',indata1);

mclose('all');

// plotting 2 d VNA data and caclulated data.
// Plotting Insertion Loss, Isolation and Return Loss on different y
axes with common x axis.
// works only in scilab 5.1 and above
clear;
clf;

//Prompting user for input file name of first file
unix_w('dir *.s2p');
fname=input("What is the file name 1(OFF state?)","string");

fid=mopen(fname,'r');
// use niter=-1 to read up to the end of file

// Exracting the file name without extension .s2p
dot_pos=strindex(fname,'.');
fname_tit=part(fname,1:dot_pos-1);

header=mfscanf(1,fid,'%s'); 

while ~(header=="50")
header=mfscanf(1,fid,'%s'); 
end 
indata1=mfscanf(-1,fid,'%f %f %f %f %f %f %f %f %f'); 

freq_meas=indata1(:,1);
freq_meas=freq_meas./1e9;

s11_1_real=indata1(:,2);
s11_1_imag=indata1(:,3);
s12_1_real=indata1(:,4);
s12_1_imag=indata1(:,5);
s21_1_real=indata1(:,6);
s21_1_imag=indata1(:,7);
s22_1_real=indata1(:,8);
s22_1_imag=indata1(:,9);

fname=input("What is the file name 2 (ON STATE)?","string");

fid=mopen(fname,'r');
// use niter=-1 to read up to the end of file

// Exracting the file name without extension .s2p
dot_pos=strindex(fname,'.');
fname_tit=part(fname,1:dot_pos-1);

header=mfscanf(1,fid,'%s'); 

while ~(header=="50")
header=mfscanf(1,fid,'%s'); 
end 
indata2=mfscanf(-1,fid,'%f %f %f %f %f %f %f %f %f'); 

// indata=mfscanf(-1,fid,'%f %f');
freq_meas=indata2(:,1);
freq_meas=freq_meas./1e9;

s11_2_real=indata2(:,2);
s11_2_imag=indata2(:,3);
s12_2_real=indata2(:,4);
s12_2_imag=indata2(:,5);
s21_2_real=indata2(:,6);
s21_2_imag=indata2(:,7);
s22_2_real=indata2(:,8);
s22_2_imag=indata2(:,9);

//preparing data for output datafile

iso=s12_1_real;
il=s12_2_real;
rl=s11_2_real;

// Plotting IL, RL and ISO in the same plot
//*********** Added in Version 13 ************ 
scf(2);
plot2d(freq_meas,[rl iso],rect=[0.5,-40,11,0]);
xtitle("",["Frequency(GHz)"],["Return Loss/ Isolation (dB)"]);
xgrid();
a=gca();

poly1_1=a.children(1);
poly1=poly1_1.children(1);
poly1.thickness=2;
poly1.foreground=2;

//poly2=poly1_1.children(2);
//poly2.thickness=2;
//poly2.foreground=1;

xset("font size",4);

a=newaxes();
a.filled="off";
plot2d(freq_meas,il,axesflag=3,rect=[0.5,-1.0,11,0]);
a.axes_visible=["off","on","off"];
xtitle(fname_tit,[("")],["Insertion Loss (dB)"]);
xset("font size",4);

// xgrid();

// Setting polyline properties for plot

a=gca();
poly1_1=a.children(1);
poly1=poly1_1.children(1);
poly1.thickness=2;
poly1.foreground=5;

// Saving the figure in .scg format
// Attaching the .scg extension to file name
name_str=[fname_tit,".scg"];
fname_out=strcat(name_str);
save(fname_out,gcf());

// op_fname=[fname_tit,".dat"];

op_fname=[fname_tit,".dat"];
op_fname=strcat(op_fname);
fid_opfile=mopen(op_fname,'w');
for i=1:length(freq_meas)
mfprintf(fid_opfile,'%f %f %f %f n',freq_meas(i),iso(i),il(i),rl(i));
end

// mfprintf(fid_opfile,'%f',indata1);

mclose('all');


Links:
------
[1] http://lists.scilab.org/mailman/listinfo/users
[2]
http://mailinglists.scilab.org/Reg-Reading-an-s2p-file-tp4031062.html
[3]
http://mailinglists.scilab.org/Scilab-users-Mailing-Lists-Archives-f2602246.html
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From mark-lautermann at live.de  Tue Aug 19 19:06:32 2014
From: mark-lautermann at live.de (Mark Lautermann)
Date: Tue, 19 Aug 2014 19:06:32 +0200
Subject: [Scilab-users] Call_scilab Linux c - undefined reference to
	`StartScilab' -
Message-ID: <BLU437-SMTP107FABB529F7AB982A2E157ECD50@phx.gbl>

Hi,

i installed Linux(32Bit) in a virtual mashine. Then installed scilab 
from command line. Following folder struckture comes out:
/usr/lib/scillab
/usr/include/scilab
/usr/share/scilab

then i created a short c file test.c :
#include "stack-c.h"
#include "call_scilab.h" /* Provide functions to call Scilab engine */
int main(void)
{
  if ( StartScilab(getenv("SCI"),NULL,NULL) == FALSE ) {
    fprintf(stderr,"Error while calling StartScilab\n");   return -1;
   }
  SendScilabJob("myMatrix=['sample','for the help']");  return 0;
  }

Set up:
export LD_LIBRARY_PATH=/usr/lib/scilab:$LD_LIBRARY_PATH
export SCI=/usr/share/scilab

Start:
gcc -o myExample  -lscilab  -L/usr/lib/scilab -I/usr/include/scilab test.c
(alternative see makefile )
*Error:*
gcc -o myExample  -lscilab  -L/usr/lib/scilab -I/usr/include/scilab test.c
test.c: In function \u2018main\u2019:
test.c:38:2: warning: passing argument 3 of \u2018StartScilab\u2019 
makes integer from pointer without a cast [enabled by default]
   if ( StartScilab(getenv("SCI"),NULL,NULL) == FALSE )
   ^
In file included from test.c:33:0:
/usr/include/scilab/call_scilab.h:43:10: note: expected \u2018int\u2019 
but argument is of type \u2018void *\u2019
      BOOL StartScilab(char *SCIpath, char *ScilabStartup, int Stacksize);
           ^
/tmp/ccqXRomB.o: In function `main':
test.c:(.text+0x48): undefined reference to `StartScilab'
test.c:(.text+0x7a): undefined reference to `SendScilabJob'
collect2: error: ld returned 1 exit status

-- tested on different Linux systems and with the Download version 
scilab-5.5.0

has anyone tested this?
Mark




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SHELL = /bin/sh

# A sample Makefile building a C code using Call Scilab using Scilab binary
PATH_SCILAB = /usr
# Note that PATH_SCILAB can be /usr/ is using a packaged version of Scilab.
SCILAB_CFLAGS = -I$(PATH_SCILAB)/include/scilab/
SCILAB_LDFLAGS = -lscilab
PATH_TO_LIB_SCILAB = $(PATH_SCILAB)/lib/scilab/
PATH_TO_LIB_CALL_SCILAB = $(PATH_SCILAB)/lib/scilab/

all: test.c
	export LD_LIBRARY_PATH=$(PATH_TO_LIB_SCILAB):$(PATH_TO_LIB_CALL_SCILAB)
	gcc -o myExample $(SCILAB_LDFLAGS) -L$(PATH_TO_LIB_SCILAB) -L$(PATH_TO_LIB_CALL_SCILAB) $(SCILAB_CFLAGS) test.c

From jrafaelbguerra at hotmail.com  Tue Aug 19 21:17:21 2014
From: jrafaelbguerra at hotmail.com (Rafael Guerra)
Date: Tue, 19 Aug 2014 20:17:21 +0100
Subject: [Scilab-users] Scilab 5.5 filled curve plotting issue?
In-Reply-To: <53F2FF6B.4090905@free.fr>
References: <DUB109-DS8498063FB16ED32720C5ACCD40@phx.gbl>
 <53F2FF6B.4090905@free.fr>
Message-ID: <DUB109-DS120BE8839E2B675D1FBD1DCCD50@phx.gbl>

Hi Samuel,

 

Thanks for pointing to the bug tracker.

I have read the explanations but could not find a workaround.

 

I hope what I say is mathematically correct:

The two data series provided in my example below seem to be topologically
equivalent and if true, why the top plot leaks while bottom one does not?

 

The bottom line is, while a better algorithm is not available, is it
possible to know what is required in order to fix input data to plot2d so
that it displays properly under the current Scilab algorithm implementation?

 

I.e., how to fix top data series provided so that it displays properly like
the bottom one?

 

cid:image003.jpg at 01CFBB45.426D7180

 

Thanks and regards

Rafael G.

 

From: users [mailto:users-bounces at lists.scilab.org] On Behalf Of Samuel
Gougeon
Sent: Tuesday, August 19, 2014 8:40 AM
To: International users mailing list for Scilab.
Subject: Re: [Scilab-users] Scilab 5.5 filled curve plotting issue?

 

Hello Rafael,

Le 19/08/2014 01:33, Rafael Guerra a ?crit :

Hello,

 

The attached simple Scilab script and data plots quite similar data as
filled curves in Scilab 5.5 (Win 7) with quite different results:

This is a known bug reported 2 years ago in
http://bugzilla.scilab.org/show_bug.cgi?id=11632
 



 

Any ideas of what can be causing the completely different behaviour of
plot2d / polyline_style = 5?

Please see comments #2 and #3 of the report.

Regards
Samuel

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From matiasb at gmail.com  Wed Aug 20 11:19:32 2014
From: matiasb at gmail.com (Matiasb)
Date: Wed, 20 Aug 2014 02:19:32 -0700 (PDT)
Subject: [Scilab-users] Scilab command line: 'unable to open display'
Message-ID: <1408526372062-4031071.post@n3.nabble.com>

Hi all, 

I need to run Scilab as a batch program in a linux server which does not
have x11 or any display installed. 
Scilab can be started as a command line using the -nw or -nwni options
(-nwni is the one i'm interested in as I don't need plots/graphics).
Nevertheless when I try to start scilab using those options I get the
following error, as if it would be still trying to get some display.

Thanks in advance for any help or pointer on how to solve this issue.
Matias

*[mbonaven at matiastdaq scilab-5.5.0]$ ./bin/scilab -nwni*
Error: unable to open display                         
/usr/bin/chcon: failed to change context of
`/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/bin/scilab-bin'
to `system_u:object_r:execmem_exec_t:s0': Operation not supported
Error: Cannot chcon 'scilab-bin'
/usr/bin/chcon: failed to change context of
`/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/bin/scilab-cli-bin'
to `system_u:object_r:execmem_exec_t:s0': Operation not supported
Error: Cannot chcon 'scilab-cli-bin'
scilab-cli-bin: /lib64/libc.so.6: version `GLIBC_2.14' not found (required
by scilab-cli-bin)
scilab-cli-bin:
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/thirdparty/libcurl.so.4:
no version information available (required by
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/scilab/libscilab-cli.so.0)
scilab-cli-bin: /lib64/libc.so.6: version `GLIBC_2.14' not found (required
by
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/scilab/libscilab-cli.so.0)
scilab-cli-bin:
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/thirdparty/libcrypto.so.0.9.8:
no version information available (required by
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/thirdparty/libcurl.so.4)
scilab-cli-bin:
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/thirdparty/libssl.so.0.9.8:
no version information available (required by
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/thirdparty/libcurl.so.4)
scilab-cli-bin: /lib64/libc.so.6: version `GLIBC_2.14' not found (required
by
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/scilab/libscifunctions.so.5)
scilab-cli-bin: /lib64/libc.so.6: version `GLIBC_2.14' not found (required
by
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/scilab/libscicompletion.so.5)
scilab-cli-bin: /lib64/libc.so.6: version `GLIBC_2.14' not found (required
by
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/scilab/libscihistory_manager.so.5)
scilab-cli-bin: /lib64/libc.so.6: version `GLIBC_2.14' not found (required
by
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/scilab/libscihdf5.so.5)
scilab-cli-bin: /lib64/libc.so.6: version `GLIBC_2.14' not found (required
by
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/scilab/libscixml.so.5)
scilab-cli-bin: /lib64/libc.so.6: version `GLIBC_2.14' not found (required
by
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/thirdparty/libxml2.so.2)
scilab-cli-bin: /lib64/libc.so.6: version `GLIBC_2.14' not found (required
by
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/thirdparty/libgfortran.so.3)
scilab-cli-bin: /lib64/libc.so.6: version `GLIBC_2.14' not found (required
by
/afs/cern.ch/work/m/mbonaven/public/powerDEVS/scilab-5.5.0/lib/thirdparty/libquadmath.so.0)




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From sejal.shewaramani at gmail.com  Wed Aug 20 13:32:09 2014
From: sejal.shewaramani at gmail.com (Sejal Shewaramani)
Date: Wed, 20 Aug 2014 04:32:09 -0700 (PDT)
Subject: [Scilab-users] Regarding Wavelet ToolBox for Scilab
Message-ID: <1408534329495-4031072.post@n3.nabble.com>

Hello,

I am a complete newbie to Scilab and since 2 days I am cluelessly struggling
to umderstand what is happening.
I want to use an open source alternative of MATLAB , so I chose Scilab. 
Kindly note that I cant access Internet directly from the computer where I
am working.

QUESTION:

I want to decompose an image into its wavelet components. For that I have
installed Scilab 5.5 successfully on my Windows PC. now I came to know that
I need SIVP, SWT and OpenCV. 
I read everywhere that they have some GUI based installer for SIVP for
Windows. But honestly i couldnt find one. I found only the zip file for
SIVP. 
For SWT i have found some toolbox installer like
swt1.0.1forscilab5.5windowsetup.exe, but in that I am getting dll error as
my PC is 64 bit and I am unable to find a setup for that.
Regarding opencv, i downloaded it, set the two envt variables as read. and
further i dont know what is to be done. 
Any help would be Appreciated. Please give me some way to get my software
set up for what i am trying to do.



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From tanthiamhuat at yahoo.com  Wed Aug 20 14:50:02 2014
From: tanthiamhuat at yahoo.com (tanthiamhuat)
Date: Wed, 20 Aug 2014 05:50:02 -0700 (PDT)
Subject: [Scilab-users] Scilab 5.5.0 in Windows Vista OS -- graphics issue
Message-ID: <1408539002356-4031073.post@n3.nabble.com>

are there any issues of using Scilab 5.5.0 in Windows Vista OS, for graphics?

for the below code, it gives me a black screen when run in Windows Vista,
but in Windows 7, it is ok.
when I run the below code in Windows Vista, using Scilab 5.4.1, it is able
to display the correct plot.

function f=zdt1(x)
f1_x1 = x(:,1);
g_x2  = 1 + 9 * ((x(:,2)-x(:,1)).^2);
h     = 1 - sqrt(f1_x1 ./ g_x2);
 
f(:,1) = f1_x1;
f(:,2) = g_x2 .* h;
endfunction 

X_in=rand(1000,2);
F_in=zdt1(X_in);
[F_out,X_out,Ind_out] = pareto_filter(F_in,X_in)
drawlater;
plot(F_in(:,1),F_in(:,2),'.r')
plot(F_out(:,1),F_out(:,2),'.b')
drawnow



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From grivet at cnrs-orleans.fr  Wed Aug 20 15:32:36 2014
From: grivet at cnrs-orleans.fr (grivet)
Date: Wed, 20 Aug 2014 15:32:36 +0200
Subject: [Scilab-users] multiple plots
In-Reply-To: <1408539002356-4031073.post@n3.nabble.com>
References: <1408539002356-4031073.post@n3.nabble.com>
Message-ID: <53F4A374.6010901@cnrs-orleans.fr>

For a single plot, it is possible to choose many aspects of the plot 
using, for instance
         ha = gca();
         ha.data_bounds=[-5, -5 ; 20, 20];

Is it possible to have the same possibilities within subplots, like
         subplot(2,1,1)
         ha1 = gca();
         ha1.data_bounds=[-5, -5 ; 20, 20];
         subplot(2,1,2)
         ha2 = gca;
         ha2.data_bounds=[-1, -1 ; 2, 2];
(which does not work with Scilab 5.5/win7).

I would like to plot two different variables, with different units and 
ranges. Even more
ambitious, I would like to run different animations in each subplot.

Thank you for any suggestions.
JP Grivet



From Serge.Steer at inria.fr  Wed Aug 20 21:38:27 2014
From: Serge.Steer at inria.fr (Serge Steer)
Date: Wed, 20 Aug 2014 21:38:27 +0200
Subject: [Scilab-users] multiple plots
In-Reply-To: <53F4A374.6010901@cnrs-orleans.fr>
References: <1408539002356-4031073.post@n3.nabble.com>
 <53F4A374.6010901@cnrs-orleans.fr>
Message-ID: <53F4F933.2070708@inria.fr>

ecau
Le 20/08/2014 15:32, grivet a ?crit :
> For a single plot, it is possible to choose many aspects of the plot 
> using, for instance
>         ha = gca();
>         ha.data_bounds=[-5, -5 ; 20, 20];
>
> Is it possible to have the same possibilities within subplots, like
>         subplot(2,1,1)
>         ha1 = gca();
>         ha1.data_bounds=[-5, -5 ; 20, 20];
>         subplot(2,1,2)
>         ha2 = gca;
take care: here you must write  ha2 = gca();
the instruction ha2=gca just copy the gca reference into ha2
> ha2.data_bounds=[-1, -1 ; 2, 2];
> (which does not work with Scilab 5.5/win7).
>
> I would like to plot two different variables, with different units and 
> ranges. Even more
> ambitious, I would like to run different animations in each subplot.
>
both are possible.
for smooth animation it is better to update the polyline data instead of 
clearing the window and recreating the subwindows and their children
Serge Steer
> Thank you for any suggestions.
> JP Grivet
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users
>



From mark-lautermann at live.de  Thu Aug 21 07:04:28 2014
From: mark-lautermann at live.de (x_Mark)
Date: Wed, 20 Aug 2014 22:04:28 -0700 (PDT)
Subject: [Scilab-users] Call_scilab Linux c - undefined reference to
 `StartScilab' -
In-Reply-To: <BLU437-SMTP107FABB529F7AB982A2E157ECD50@phx.gbl>
References: <BLU437-SMTP107FABB529F7AB982A2E157ECD50@phx.gbl>
Message-ID: <1408597468725-4031076.post@n3.nabble.com>

Ok found the solution. I have linked all libs from lib/scilab. -lscilab is
not enough!



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From grivet at cnrs-orleans.fr  Thu Aug 21 14:25:46 2014
From: grivet at cnrs-orleans.fr (grivet)
Date: Thu, 21 Aug 2014 14:25:46 +0200
Subject: [Scilab-users] multiple plots
In-Reply-To: <53F4F933.2070708@inria.fr>
References: <1408539002356-4031073.post@n3.nabble.com>
 <53F4A374.6010901@cnrs-orleans.fr> <53F4F933.2070708@inria.fr>
Message-ID: <53F5E54A.7090703@cnrs-orleans.fr>

Thank you Serge for correctiong my mistake; my program now work fine. 
However,
I notice that the two subplots are rather small and occupy a small 
fraction of the overall
window. They shrink when the window is made small but they do not get 
larger than a
certain size when i enlarge the window. Is it possible to choose the 
size of the subplots ?

JP Grivet


From mark-lautermann at live.de  Thu Aug 21 22:08:26 2014
From: mark-lautermann at live.de (x_Mark)
Date: Thu, 21 Aug 2014 13:08:26 -0700 (PDT)
Subject: [Scilab-users] Scilab command line: 'unable to open display'
In-Reply-To: <1408526372062-4031071.post@n3.nabble.com>
References: <1408526372062-4031071.post@n3.nabble.com>
Message-ID: <1408651706918-4031080.post@n3.nabble.com>

did you google this?
`GLIBC_2.14' not found

maybe this helps
http://askubuntu.com/questions/421642/libc-so-6-version-glibc-2-14-not-found



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From david.w.watson at nasa.gov  Thu Aug 21 15:09:14 2014
From: david.w.watson at nasa.gov (watsodw)
Date: Thu, 21 Aug 2014 06:09:14 -0700 (PDT)
Subject: [Scilab-users] Scilab 5.5.0 fails to start on Mac 10.9.4
Message-ID: <1408626554078-4031079.post@n3.nabble.com>

When I run Scilab-5.5.0.app I get the following error:

"JavaVM: requested Java version (1.5) not available. Using Java at
"/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home" instead.
Could not create a Scilab main class. Error:
Exception in thread "main" java.lang.NoSuchMethodError:
javax.media.opengl.GLDrawableFactory.initSingleton()V
	at
javax.media.opengl.GLProfile.initProfilesForDefaultDevices(GLProfile.java:1573)
	at javax.media.opengl.GLProfile.access$100(GLProfile.java:76)
	at javax.media.opengl.GLProfile$1.run(GLProfile.java:155)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.media.opengl.GLProfile.initSingleton(GLProfile.java:123)
	at javax.media.opengl.GLProfile.getProfileMap(GLProfile.java:2070)
	at javax.media.opengl.GLProfile.get(GLProfile.java:906)
	at javax.media.opengl.GLProfile.getDefault(GLProfile.java:640)
	at javax.media.opengl.GLProfile.getDefault(GLProfile.java:651)
	at org.scilab.modules.gui.SwingView.<init>(Unknown Source)
	at org.scilab.modules.gui.SwingView.registerSwingView(Unknown Source)
	at org.scilab.modules.core.Scilab.<init>(Unknown Source)

Scilab cannot create Scilab Java Main-Class (we have not been able to find
the main Scilab class. Check if the Scilab and thirdparty packages are
available)."

Why does Scilab look for a certain Java version?

If I run  scilab-cli-bin from the terminal I get:

dyld: Library not loaded: /usr/lib/libxml2.2.dylib
  Referenced from:
/Users/dwwatson/desktop/scilab-5.5.0.app/contents/macos/bin/scilab-cli-bin
  Reason: Incompatible library version: scilab-cli-bin requires version
12.0.0 or later, but libxml2.2.dylib provides version 10.0.0
Trace/BPT trap

even though libxml2.2.dylib from Macports is in my path before
/usr/lib/libxml2.2.dylib.


I can run scilab-cli from the terminal and it works.



--
View this message in context: http://mailinglists.scilab.org/Scilab-5-5-0-fails-to-start-on-Mac-10-9-4-tp4031079.html
Sent from the Scilab users - Mailing Lists Archives mailing list archive at Nabble.com.


From stefan.rau at conducta.endress.com  Fri Aug 22 08:56:08 2014
From: stefan.rau at conducta.endress.com (stefan.rau at conducta.endress.com)
Date: Fri, 22 Aug 2014 08:56:08 +0200
Subject: [Scilab-users] more than 3 y axis which are not plotted one above
	the other
Message-ID: <OFC4DC5287.B77F5EC1-ONC1257D3C.00256A01-C1257D3C.00261990@endress.com>



Hello, I want to plot several curves.

The result should look like

Hallo, ich muss mehrere Kurven in einem Diagramm darstellen.

Es soll so aussehen:

http://www.mathworks.com/matlabcentral/fileexchange/screenshots/43/original.jpg


Are there any possibility in SciLab to plot the axis like in the picture?

I have only found (in the demo_gui() plotyyy) the options left/middle/right
for the location of the axis in the plot2d() function.

But if I have 2 axis on the right, there is one above the other....so its
senseless.

Are there any solution for that?

Thank you....regards Stefan


_________________________________________________________________________

Endress+Hauser Conducta GmbH+Co.KG
Amtsgericht Stuttgart HRA 201908
Sitz der Gesellschaft: Gerlingen
Pers?nlich haftende Gesellschafterin:
Endress+Hauser Conducta
Verwaltungsgesellschaft mbH
Sitz der Gesellschaft: Gerlingen
Amtsgericht Stuttgart HRA 201929
Gesch?ftsf?hrer: Dr. Manfred Jagiella
__________________________________________________________________________

Disclaimer:

The information transmitted is intended only for the person or entity to
which it is addressed and may contain confidential and/or privileged
material. Any review, retransmission, dissemination or other use of, or
taking of any action in reliance upon, this information by persons or
entities other than the intended recipient is prohibited. If you receive
this in error, please contact the sender and delete the material from any
computer.

__________________________________________________________________________

http://www.conducta.endress.com/
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From sgougeon at free.fr  Fri Aug 22 09:45:42 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Fri, 22 Aug 2014 09:45:42 +0200
Subject: [Scilab-users] Scilab 5.5 filled curve plotting issue?
In-Reply-To: <DUB109-DS120BE8839E2B675D1FBD1DCCD50@phx.gbl>
References: <DUB109-DS8498063FB16ED32720C5ACCD40@phx.gbl>
 <53F2FF6B.4090905@free.fr> <DUB109-DS120BE8839E2B675D1FBD1DCCD50@phx.gbl>
Message-ID: <53F6F526.6030002@free.fr>

Hello Rafael,

Le 19/08/2014 21:17, Rafael Guerra a ?crit :
>
> Hi Samuel,
>
> Thanks for pointing to the bug tracker.
>
> I have read the explanations but could not find a workaround.
>
> I hope what I say is mathematically correct:
>
> /The two data series provided in my example below seem to be 
> topologically equivalent and if true, /
>
/

Yes, both are self-intersecting polygons. The limitation of the 
algorithm does not say that none of self-intersecting polygons can be 
processed conveniently, but that there is no garanty for some of them./
> .../...
>
> I.e., how to fix top data series provided so that it displays properly 
> like the bottom one?
>


By fixing the algo rewritten for Scilab 5.3.0 with heavy downgrades 
listed in the comment w.r.t. the former one.
This is also showing in 3D and reported here:
http://bugzilla.scilab.org/show_bug.cgi?id=8310
http://bugzilla.scilab.org/attachment.cgi?id=2068

Regards
Samuel

> cid:image003.jpg at 01CFBB45.426D7180
>
> Thanks and regards
>
> Rafael G.
>
> *From:*users [mailto:users-bounces at lists.scilab.org] *On Behalf Of 
> *Samuel Gougeon
> *Sent:* Tuesday, August 19, 2014 8:40 AM
> *To:* International users mailing list for Scilab.
> *Subject:* Re: [Scilab-users] Scilab 5.5 filled curve plotting issue?
>
> Hello Rafael,
>
> Le 19/08/2014 01:33, Rafael Guerra a ?crit :
>
>     Hello,
>
>     The attached simple Scilab script and data plots quite similar
>     data as filled curves in Scilab 5.5 (Win 7) with quite different
>     results:
>
> This is a known bug reported 2 years ago in
> http://bugzilla.scilab.org/show_bug.cgi?id=11632
>
>
> Any ideas of what can be causing the completely different behaviour of 
> plot2d / polyline_style = 5?
>
> Please see comments #2 and #3 of the report.
>
> Regards
> Samuel
>
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users

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From sgougeon at free.fr  Fri Aug 22 10:32:03 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Fri, 22 Aug 2014 10:32:03 +0200
Subject: [Scilab-users] more than 3 y axis which are not plotted one
 above the other
In-Reply-To: <OFC4DC5287.B77F5EC1-ONC1257D3C.00256A01-C1257D3C.00261990@endress.com>
References: <OFC4DC5287.B77F5EC1-ONC1257D3C.00256A01-C1257D3C.00261990@endress.com>
Message-ID: <53F70003.80405@free.fr>

Hello Stefan,

To do this, you may
a) cancel drawing the default axis of the related axes, using the 
gca().axes_visible property
b) replace it using drawaxis(..) to draw an extra axis. It can be drawn 
in a margin of the related axes. This works only for a linear axis. 
extra log axis is not supported.

A simple example:
plot2d()
a = gca();
a.axes_visible(2)="off";
drawaxis(tics="r",x=6.7,y=[-2, 2, 8], dir="r", sub_int=5,format_n="%g")



You may also have to tune the margin(s), using the gca().margins 
property. If so, for axes superimposed with newaxes(..), the margin of 
all superimposed axes will have to be adjusted in the same way.

HTH
Regards
Samuel

Le 22/08/2014 08:56, stefan.rau at conducta.endress.com a ?crit :
>
> Hello, I want to plot several curves.
>
> The result should look like
>
> Hallo, ich muss mehrere Kurven in einem Diagramm darstellen.
>
> Es soll so aussehen:
>
> _http://www.mathworks.com/matlabcentral/fileexchange/screenshots/43/original.jpg_
>
> Are there any possibility in SciLab to plot the axis like in the picture?
>
> I have only found (in the demo_gui() plotyyy) the options 
> left/middle/right for the location of the axis in the plot2d() function.
>
> But if I have 2 axis on the right, there is one above the other....so 
> its senseless.
>
> Are there any solution for that?
>
> Thank you....regards Stefan
>
>
> _________________________________________________________________________
>
> Endress+Hauser Conducta GmbH+Co.KG
> Amtsgericht Stuttgart HRA 201908
> Sitz der Gesellschaft: Gerlingen
> Pers?nlich haftende Gesellschafterin:
> Endress+Hauser Conducta
> Verwaltungsgesellschaft mbH
> Sitz der Gesellschaft: Gerlingen
> Amtsgericht Stuttgart HRA 201929
> Gesch?ftsf?hrer: Dr. Manfred Jagiella
> __________________________________________________________________________
>
> Disclaimer:
>
> The information transmitted is intended only for the person or entity to
> which it is addressed and may contain confidential and/or privileged
> material. Any review, retransmission, dissemination or other use of, or
> taking of any action in reliance upon, this information by persons or
> entities other than the intended recipient is prohibited. If you receive
> this in error, please contact the sender and delete the material from any
> computer.
>
> __________________________________________________________________________
>
> http://www.conducta.endress.com/
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users

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From stefan.rau at conducta.endress.com  Fri Aug 22 11:01:36 2014
From: stefan.rau at conducta.endress.com (stefan.rau at conducta.endress.com)
Date: Fri, 22 Aug 2014 11:01:36 +0200
Subject: [Scilab-users] Antwort: Re: more than 3 y axis which are not
 plotted one above the other
In-Reply-To: <53F70003.80405@free.fr>
References: <OFC4DC5287.B77F5EC1-ONC1257D3C.00256A01-C1257D3C.00261990@endress.com>
 <53F70003.80405@free.fr>
Message-ID: <OF11263E41.6D5979B5-ONC1257D3C.00313D7B-C1257D3C.0031962F@endress.com>




thanks, that helps a bit. But can you please show me an simple example how
I can add 3 axes. I tried to manipulate an axe position by a=gca
();a.margins=[...] but the result wasnt what I want.

Additional question: how can i force that a y axis begins by 0 and the
plotted curve is automatically fitted to my scale?

Thanks!
_________________________________________________________________________

Endress+Hauser Conducta GmbH+Co.KG
Amtsgericht Stuttgart HRA 201908
Sitz der Gesellschaft: Gerlingen
Pers?nlich haftende Gesellschafterin:
Endress+Hauser Conducta
Verwaltungsgesellschaft mbH
Sitz der Gesellschaft: Gerlingen
Amtsgericht Stuttgart HRA 201929
Gesch?ftsf?hrer: Dr. Manfred Jagiella
__________________________________________________________________________

Disclaimer:

The information transmitted is intended only for the person or entity to
which it is addressed and may contain confidential and/or privileged
material. Any review, retransmission, dissemination or other use of, or
taking of any action in reliance upon, this information by persons or
entities other than the intended recipient is prohibited. If you receive
this in error, please contact the sender and delete the material from any
computer.

__________________________________________________________________________

http://www.conducta.endress.com/
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From sgougeon at free.fr  Fri Aug 22 11:18:08 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Fri, 22 Aug 2014 11:18:08 +0200
Subject: [Scilab-users] Antwort: Re: more than 3 y axis which are not
 plotted one above the other
In-Reply-To: <OF11263E41.6D5979B5-ONC1257D3C.00313D7B-C1257D3C.0031962F@endress.com>
References: <OFC4DC5287.B77F5EC1-ONC1257D3C.00256A01-C1257D3C.00261990@endress.com>
 <53F70003.80405@free.fr>
 <OF11263E41.6D5979B5-ONC1257D3C.00313D7B-C1257D3C.0031962F@endress.com>
Message-ID: <53F70AD0.4070301@free.fr>

Le 22/08/2014 11:01, stefan.rau at conducta.endress.com a ?crit :
>
> thanks, that helps a bit. But can you please show me an simple example 
> how I can add 3 axes. I tried to manipulate an axe position by 
> a=gca();a.margins=[...] but the result wasnt what I want.
>
Try again. As previously written, you must modify the (say right) margin 
of ALL superimposed axes. Then, it should be rendered as expected.
>
>
> Additional question: how can i force that a y axis begins by 0 and the 
> plotted curve is automatically fitted to my scale?
>
by setting gca().data_bounds(2) to 0.
http://help.scilab.org/docs/5.5.0/en_US/axes_properties.html

Samuel

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From stefan.rau at conducta.endress.com  Fri Aug 22 11:36:32 2014
From: stefan.rau at conducta.endress.com (stefan.rau at conducta.endress.com)
Date: Fri, 22 Aug 2014 11:36:32 +0200
Subject: [Scilab-users] Antwort: Re: Antwort: Re: more than 3 y axis which
 are not plotted one above the other
In-Reply-To: <53F70AD0.4070301@free.fr>
References: <OFC4DC5287.B77F5EC1-ONC1257D3C.00256A01-C1257D3C.00261990@endress.com>
 <53F70003.80405@free.fr>
 <OF11263E41.6D5979B5-ONC1257D3C.00313D7B-C1257D3C.0031962F@endress.com>
 <53F70AD0.4070301@free.fr>
Message-ID: <OFAB93A3D8.211D7392-ONC1257D3C.0034AD70-C1257D3C.0034C8BE@endress.com>


Ok, that works now. Is that correct that I can't use an y grid on these
additional axis, because the grid works only on the y axis i switched off?
_________________________________________________________________________

Endress+Hauser Conducta GmbH+Co.KG
Amtsgericht Stuttgart HRA 201908
Sitz der Gesellschaft: Gerlingen
Pers?nlich haftende Gesellschafterin:
Endress+Hauser Conducta
Verwaltungsgesellschaft mbH
Sitz der Gesellschaft: Gerlingen
Amtsgericht Stuttgart HRA 201929
Gesch?ftsf?hrer: Dr. Manfred Jagiella
__________________________________________________________________________

Disclaimer:

The information transmitted is intended only for the person or entity to
which it is addressed and may contain confidential and/or privileged
material. Any review, retransmission, dissemination or other use of, or
taking of any action in reliance upon, this information by persons or
entities other than the intended recipient is prohibited. If you receive
this in error, please contact the sender and delete the material from any
computer.

__________________________________________________________________________

http://www.conducta.endress.com/
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From sgougeon at free.fr  Fri Aug 22 12:44:31 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Fri, 22 Aug 2014 12:44:31 +0200
Subject: [Scilab-users] Antwort: Re: Antwort: Re: more than 3 y axis
 which are not plotted one above the other
In-Reply-To: <OFAB93A3D8.211D7392-ONC1257D3C.0034AD70-C1257D3C.0034C8BE@endress.com>
References: <OFC4DC5287.B77F5EC1-ONC1257D3C.00256A01-C1257D3C.00261990@endress.com>
 <53F70003.80405@free.fr>
 <OF11263E41.6D5979B5-ONC1257D3C.00313D7B-C1257D3C.0031962F@endress.com>
 <53F70AD0.4070301@free.fr>
 <OFAB93A3D8.211D7392-ONC1257D3C.0034AD70-C1257D3C.0034C8BE@endress.com>
Message-ID: <53F71F0F.1070601@free.fr>

Le 22/08/2014 11:36, stefan.rau at conducta.endress.com a ?crit :
>
> Ok, that works now. Is that correct that I can't use an y grid on 
> these additional axis, because the grid works only on the y axis i 
> switched off?
>
I confirm, unfortunately. In my opinion, it's a bad Scilab behavior. I 
am reporting a bug report about it.
Samuel

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From stefan.rau at conducta.endress.com  Fri Aug 22 13:05:50 2014
From: stefan.rau at conducta.endress.com (stefan.rau at conducta.endress.com)
Date: Fri, 22 Aug 2014 13:05:50 +0200
Subject: [Scilab-users] Antwort: Re: Antwort: Re: Antwort: Re: more than 3 y
 axis which are not plotted one above the other
In-Reply-To: <53F71F0F.1070601@free.fr>
References: <OFC4DC5287.B77F5EC1-ONC1257D3C.00256A01-C1257D3C.00261990@endress.com>
 <53F70003.80405@free.fr>
 <OF11263E41.6D5979B5-ONC1257D3C.00313D7B-C1257D3C.0031962F@endress.com>
 <53F70AD0.4070301@free.fr>
 <OFAB93A3D8.211D7392-ONC1257D3C.0034AD70-C1257D3C.0034C8BE@endress.com>
 <53F71F0F.1070601@free.fr>
Message-ID: <OFF3A1B95E.61763149-ONC1257D3C.003CEAFE-C1257D3C.003CF5EC@endress.com>


Ok, thank you for your fast help!
_________________________________________________________________________

Endress+Hauser Conducta GmbH+Co.KG
Amtsgericht Stuttgart HRA 201908
Sitz der Gesellschaft: Gerlingen
Pers?nlich haftende Gesellschafterin:
Endress+Hauser Conducta
Verwaltungsgesellschaft mbH
Sitz der Gesellschaft: Gerlingen
Amtsgericht Stuttgart HRA 201929
Gesch?ftsf?hrer: Dr. Manfred Jagiella
__________________________________________________________________________

Disclaimer:

The information transmitted is intended only for the person or entity to
which it is addressed and may contain confidential and/or privileged
material. Any review, retransmission, dissemination or other use of, or
taking of any action in reliance upon, this information by persons or
entities other than the intended recipient is prohibited. If you receive
this in error, please contact the sender and delete the material from any
computer.

__________________________________________________________________________

http://www.conducta.endress.com/
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From sgougeon at free.fr  Fri Aug 22 13:39:33 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Fri, 22 Aug 2014 13:39:33 +0200
Subject: [Scilab-users] Antwort: Re: Antwort: Re: more than 3 y axis
 which are not plotted one above the other
In-Reply-To: <53F71F0F.1070601@free.fr>
References: <OFC4DC5287.B77F5EC1-ONC1257D3C.00256A01-C1257D3C.00261990@endress.com>
 <53F70003.80405@free.fr>
 <OF11263E41.6D5979B5-ONC1257D3C.00313D7B-C1257D3C.0031962F@endress.com>
 <53F70AD0.4070301@free.fr>
 <OFAB93A3D8.211D7392-ONC1257D3C.0034AD70-C1257D3C.0034C8BE@endress.com>
 <53F71F0F.1070601@free.fr>
Message-ID: <53F72BF5.1000308@free.fr>

Le 22/08/2014 12:44, Samuel Gougeon a ?crit :
> Le 22/08/2014 11:36, stefan.rau at conducta.endress.com a ?crit :
>>
>> Ok, that works now. Is that correct that I can't use an y grid on 
>> these additional axis, because the grid works only on the y axis i 
>> switched off?
>>
> I confirm, unfortunately. In my opinion, it's a bad Scilab behavior. I 
> am reporting a bug report about it.
That's it at http://bugzilla.scilab.org/13564

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From sgougeon at free.fr  Sat Aug 23 11:30:42 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Sat, 23 Aug 2014 11:30:42 +0200
Subject: [Scilab-users] Antwort: Re: Antwort: Re: more than 3 y axis
 which are not plotted one above the other
In-Reply-To: <OFAB93A3D8.211D7392-ONC1257D3C.0034AD70-C1257D3C.0034C8BE@endress.com>
References: <OFC4DC5287.B77F5EC1-ONC1257D3C.00256A01-C1257D3C.00261990@endress.com>
 <53F70003.80405@free.fr>
 <OF11263E41.6D5979B5-ONC1257D3C.00313D7B-C1257D3C.0031962F@endress.com>
 <53F70AD0.4070301@free.fr>
 <OFAB93A3D8.211D7392-ONC1257D3C.0034AD70-C1257D3C.0034C8BE@endress.com>
Message-ID: <53F85F42.4040001@free.fr>

Le 22/08/2014 11:36, stefan.rau at conducta.endress.com a ?crit :
>
> Ok, that works now. Is that correct that I can't use an y grid on 
> these additional axis, because the grid works only on the y axis i 
> switched off?
>
Do you really intend to display 3 overlaying grids, one per axes ?
Even with one color for each, the whole readability would likely be poor.
If not, then you can keep the axis for which you need a grid as a 
default one,
and add extra axis only for data for which you do not need a grid.

Samuel

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From jrafaelbguerra at hotmail.com  Sat Aug 23 11:56:57 2014
From: jrafaelbguerra at hotmail.com (Rafael Guerra)
Date: Sat, 23 Aug 2014 10:56:57 +0100
Subject: [Scilab-users] Scilab 5.5 filled curve plotting issue?
In-Reply-To: <53F6F526.6030002@free.fr>
References: <DUB109-DS8498063FB16ED32720C5ACCD40@phx.gbl>
 <53F2FF6B.4090905@free.fr> <DUB109-DS120BE8839E2B675D1FBD1DCCD50@phx.gbl>
 <53F6F526.6030002@free.fr>
Message-ID: <DUB109-DS41C02E18D0D6D8996B544FCCD10@phx.gbl>

Hi Samuel,

 

Fyi, adding a small number (~1e-6) to the last sample of the series results
in a good filled curve plot2d.

Le voil?:



 

?Never underestimate the ingenuity of complete fools.", Douglas Adams

Kind regards,

Rafael G.

 

 

From: users [mailto:users-bounces at lists.scilab.org] On Behalf Of Samuel
Gougeon
Sent: Friday, August 22, 2014 8:46 AM
To: International users mailing list for Scilab.
Subject: Re: [Scilab-users] Scilab 5.5 filled curve plotting issue?

 

Hello Rafael,

Le 19/08/2014 21:17, Rafael Guerra a ?crit :

Hi Samuel,

 

Thanks for pointing to the bug tracker.

I have read the explanations but could not find a workaround.

 

I hope what I say is mathematically correct:

The two data series provided in my example below seem to be topologically
equivalent and if true, 


 
Yes, both are self-intersecting polygons. The limitation of the algorithm
does not say that none of self-intersecting polygons can be processed
conveniently, but that there is no garanty for some of them.



.../... 



I.e., how to fix top data series provided so that it displays properly like
the bottom one?



By fixing the algo rewritten for Scilab 5.3.0 with heavy downgrades listed
in the comment w.r.t. the former one.
This is also showing in 3D and reported here:
http://bugzilla.scilab.org/show_bug.cgi?id=8310
http://bugzilla.scilab.org/attachment.cgi?id=2068

Regards
Samuel




 

cid:image003.jpg at 01CFBB45.426D7180

 

Thanks and regards

Rafael G.

 

From: users [mailto:users-bounces at lists.scilab.org] On Behalf Of Samuel
Gougeon
Sent: Tuesday, August 19, 2014 8:40 AM
To: International users mailing list for Scilab.
Subject: Re: [Scilab-users] Scilab 5.5 filled curve plotting issue?

 

Hello Rafael,

Le 19/08/2014 01:33, Rafael Guerra a ?crit :

Hello,

 

The attached simple Scilab script and data plots quite similar data as
filled curves in Scilab 5.5 (Win 7) with quite different results:

This is a known bug reported 2 years ago in
http://bugzilla.scilab.org/show_bug.cgi?id=11632
 




 

Any ideas of what can be causing the completely different behaviour of
plot2d / polyline_style = 5?

Please see comments #2 and #3 of the report.

Regards
Samuel






_______________________________________________
users mailing list
users at lists.scilab.org
http://lists.scilab.org/mailman/listinfo/users

 

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From jrafaelbguerra at hotmail.com  Sat Aug 23 12:08:22 2014
From: jrafaelbguerra at hotmail.com (Rafael Guerra)
Date: Sat, 23 Aug 2014 11:08:22 +0100
Subject: [Scilab-users] RE(2):  Scilab 5.5 filled curve plotting issue?
Message-ID: <DUB109-DS171D32CE1B46A3B50D6264CCD10@phx.gbl>

(my previous email was inaccurate, please disregard it; corrections below)

 

Hi Samuel,

 

Fyi, adding a small number (~1e-6*max) to the series and keeping the ends
equal to zero overcomes the self-intersecting issue, resulting in a proper
filled-curve plot2d plot.

Le voil?:



 

?Never underestimate the ingenuity of complete fools.", Douglas Adams

Kind regards,

Rafael G.

 

 

From: users [mailto:users-bounces at lists.scilab.org] On Behalf Of Samuel
Gougeon
Sent: Friday, August 22, 2014 8:46 AM
To: International users mailing list for Scilab.
Subject: Re: [Scilab-users] Scilab 5.5 filled curve plotting issue?

 

Hello Rafael,

Le 19/08/2014 21:17, Rafael Guerra a ?crit :

Hi Samuel,

 

Thanks for pointing to the bug tracker.

I have read the explanations but could not find a workaround.

 

I hope what I say is mathematically correct:

The two data series provided in my example below seem to be topologically
equivalent and if true, 


 
Yes, both are self-intersecting polygons. The limitation of the algorithm
does not say that none of self-intersecting polygons can be processed
conveniently, but that there is no garanty for some of them.

.../... 

I.e., how to fix top data series provided so that it displays properly like
the bottom one?



By fixing the algo rewritten for Scilab 5.3.0 with heavy downgrades listed
in the comment w.r.t. the former one.
This is also showing in 3D and reported here:
http://bugzilla.scilab.org/show_bug.cgi?id=8310
http://bugzilla.scilab.org/attachment.cgi?id=2068

Regards
Samuel



 

cid:image003.jpg at 01CFBB45.426D7180

 

Thanks and regards

Rafael G.

 

From: users [mailto:users-bounces at lists.scilab.org] On Behalf Of Samuel
Gougeon
Sent: Tuesday, August 19, 2014 8:40 AM
To: International users mailing list for Scilab.
Subject: Re: [Scilab-users] Scilab 5.5 filled curve plotting issue?

 

Hello Rafael,

Le 19/08/2014 01:33, Rafael Guerra a ?crit :

Hello,

 

The attached simple Scilab script and data plots quite similar data as
filled curves in Scilab 5.5 (Win 7) with quite different results:

This is a known bug reported 2 years ago in
http://bugzilla.scilab.org/show_bug.cgi?id=11632
 



 

Any ideas of what can be causing the completely different behaviour of
plot2d / polyline_style = 5?

Please see comments #2 and #3 of the report.

Regards
Samuel





_______________________________________________
users mailing list
users at lists.scilab.org
http://lists.scilab.org/mailman/listinfo/users

 

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From abhi24394 at gmail.com  Sat Aug 23 21:27:07 2014
From: abhi24394 at gmail.com (abhi24394)
Date: Sat, 23 Aug 2014 12:27:07 -0700 (PDT)
Subject: [Scilab-users] Queries about vector and complex numbers
In-Reply-To: <3B5FFC67498DFF49AE7271A584867D16F40B258643@301EX00100.sidel.com>
References: <CAMC_Mpc2ZOD3Nh1hF1gTLCW2tzLsrdFNrULik74jnfFKCbMt3w@mail.gmail.com>
 <3B5FFC67498DFF49AE7271A584867D16F408800B58@301EX00100.sidel.com>
 <1404459177154-4030821.post@n3.nabble.com>
 <3B5FFC67498DFF49AE7271A584867D16F40B14B044@301EX00100.sidel.com>
 <1404508963586-4030826.post@n3.nabble.com>
 <3B5FFC67498DFF49AE7271A584867D16F40B258643@301EX00100.sidel.com>
Message-ID: <1408822027873-4031093.post@n3.nabble.com>

Thanks for help Christophe
I have coded the example of cross product as per your suggestions lastly i
want to know how can i display this on my console.
It should be a .sce file.
Thanks in advance. 



--
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From vincent.couvert at scilab-enterprises.com  Mon Aug 25 17:23:51 2014
From: vincent.couvert at scilab-enterprises.com (Vincent COUVERT)
Date: Mon, 25 Aug 2014 17:23:51 +0200
Subject: [Scilab-users] Scilab command line: 'unable to open display'
In-Reply-To: <1408651706918-4031080.post@n3.nabble.com>
References: <1408526372062-4031071.post@n3.nabble.com>
 <1408651706918-4031080.post@n3.nabble.com>
Message-ID: <53FB5507.2040905@scilab-enterprises.com>

Hello,

This issue is fixed in Scilab nightly-build versions: 
http://www.scilab.org/en/development/nightly_builds/branch55

Regards,

Le 21/08/2014 22:08, x_Mark a ?crit :
> did you google this?
> `GLIBC_2.14' not found
>
> maybe this helps
> http://askubuntu.com/questions/421642/libc-so-6-version-glibc-2-14-not-found
>
>
>
> --
> View this message in context: http://mailinglists.scilab.org/Scilab-command-line-unable-to-open-display-tp4031071p4031080.html
> Sent from the Scilab users - Mailing Lists Archives mailing list archive at Nabble.com.
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users



From yanndebray at yahoo.fr  Mon Aug 25 12:08:12 2014
From: yanndebray at yahoo.fr (Yann Debray)
Date: Mon, 25 Aug 2014 11:08:12 +0100
Subject: [Scilab-users] Regarding Wavelet ToolBox for Scilab
In-Reply-To: <1408534329495-4031072.post@n3.nabble.com>
References: <1408534329495-4031072.post@n3.nabble.com>
Message-ID: <1408961292.88586.YahooMailNeo@web133105.mail.ir2.yahoo.com>

Hi,

You can find a toolbox for Wavelets (called Wavelib) and lessons based upon it on the following link:
http://alex.nt.fh-koeln.de/wavecourse.html

Hereby is also the introduction tutorial for the toolbox.
Do not hesitate to give feedback and example about your usage.

Sincerely yours
Yann Debray



Le Mercredi 20 ao?t 2014 13h34, Sejal Shewaramani <sejal.shewaramani at gmail.com> a ?crit :
 


Hello,

I am a complete newbie to Scilab and since 2 days I am cluelessly struggling
to umderstand what is happening.
I want to use an open source alternative of MATLAB , so I chose Scilab. 
Kindly note that I cant access Internet directly from the computer where I
am working.

QUESTION:

I want to decompose an image into its wavelet components. For that I have
installed Scilab 5.5 successfully on my Windows PC. now I came to know that
I need SIVP, SWT and OpenCV. 
I read everywhere that they have some GUI based installer for SIVP for
Windows. But honestly i couldnt find one. I found only the zip file for
SIVP. 
For SWT i have found some toolbox installer like
swt1.0.1forscilab5.5windowsetup.exe, but in that I am getting dll error as
my PC is 64 bit and I am unable to find a setup for that.
Regarding opencv, i downloaded it, set the two envt variables as read. and
further i dont know what is to be done. 
Any help would be Appreciated. Please give me some way to get my software
set up for what i am trying to do.



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From clement.david at scilab-enterprises.com  Tue Aug 26 11:27:14 2014
From: clement.david at scilab-enterprises.com (=?ISO-8859-1?Q?Cl=E9ment?= David)
Date: Tue, 26 Aug 2014 11:27:14 +0200
Subject: [Scilab-users] Scilab
In-Reply-To: <DUB120-W40BFD510FDA1BC0BB7FF9F86D60@phx.gbl>
References: <DUB120-W40BFD510FDA1BC0BB7FF9F86D60@phx.gbl>
Message-ID: <1409045234.2246.5.camel@paros>

Hello Gcinumuzi,

Le samedi 16 ao?t 2014 ? 16:33 +0200, Gcinumuzi Ngwenya a ?crit :
> Good Afternoon ladies and gentlemen
>  
> My name is Gcinumuzi Ngwenya from South Africa. I am doing my BTech in
> Chemical Engineering and right now we have been introduced to Scilab
> but I am really struggling at the moment. Can you guys please help me
> with this two questions?

Yep I will !
 
> 1. I have been plotting a transfer function graph on scilab and I see
> that on the x-axis it starts at 1 and end up on the value which I
> entered for final integration time, what informs scilab or the graph
> to start at 1, or what is the reason for it to start at 1? I got this
> graph when I was doing an example for the beginners on scilab website

In fact the simulation start at t=0 however the "0" x axis label is not
displayed on the plot. To confirm, just zoom in at the start of the
plot.

> 2. what is meant by buffer size on the simulation/setup menu ?

I assume you are asking about the buffer size of a scope ; This is kind
of an optimization setting which was used before Scilab 5.4.0. Due to
the graphic re-implementation (5.4 and later) I do not see any visible
effect anymore.

> 3. is there a document that can explain to me the function of each
> palette on xcos?

The palettes and each block should be documented on the Scilab help.

> Thanking you in advance for your assistance 
>  
> Best Regards 
>  
> Gcinumuzi

Regards,

--
Cl?ment




From sejal.shewaramani at gmail.com  Tue Aug 26 14:22:18 2014
From: sejal.shewaramani at gmail.com (Sejal Shewaramani)
Date: Tue, 26 Aug 2014 05:22:18 -0700 (PDT)
Subject: [Scilab-users] Regarding Wavelet ToolBox for Scilab
In-Reply-To: <1408961292.88586.YahooMailNeo@web133105.mail.ir2.yahoo.com>
References: <1408534329495-4031072.post@n3.nabble.com>
 <1408961292.88586.YahooMailNeo@web133105.mail.ir2.yahoo.com>
Message-ID: <1409055738959-4031098.post@n3.nabble.com>

Hello,

Thanks a lot for replying. While I was searching for wavelet toolboxes, I
did come across wavelib, but I wasnt sure about how to use it at that time.
Then I thought of using a toolbox which is exclusively only for wavelets.
Because that is what I wanted basically. (Now, sorry because this is not
related to Scilab usage.)
So, I tried a toolbox called Waili. I have by now successfully configured
and compiled the source. 
And I hope this library helps me. 

Any suggestions from your side are very much appreciated, if you think that
may be I am on the wrong way.


Regards,
Sejal



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From Christophe.Dang at sidel.com  Tue Aug 26 16:54:45 2014
From: Christophe.Dang at sidel.com (Dang, Christophe)
Date: Tue, 26 Aug 2014 16:54:45 +0200
Subject: [Scilab-users] Queries about vector and complex numbers
In-Reply-To: <1408822027873-4031093.post@n3.nabble.com>
References: <CAMC_Mpc2ZOD3Nh1hF1gTLCW2tzLsrdFNrULik74jnfFKCbMt3w@mail.gmail.com>
 <3B5FFC67498DFF49AE7271A584867D16F408800B58@301EX00100.sidel.com>
 <1404459177154-4030821.post@n3.nabble.com>
 <3B5FFC67498DFF49AE7271A584867D16F40B14B044@301EX00100.sidel.com>
 <1404508963586-4030826.post@n3.nabble.com>
 <3B5FFC67498DFF49AE7271A584867D16F40B258643@301EX00100.sidel.com>
 <1408822027873-4031093.post@n3.nabble.com>
Message-ID: <3B5FFC67498DFF49AE7271A584867D16F40BAEBE20@301EX00100.sidel.com>

Hello, 

> De abhi24394
> Envoy? : samedi 23 ao?t 2014 21:27
>
> I have coded the example of cross product as per your suggestions
> lastly i want to know how can i display this on my console.
> It should be a .sce file.

The function

disp(myVar)

displays the content of the variable myVar.
You might also try

disp(string(myVar))

disp(myVar, "myVar = ")

disp(string(myVar), "myVar = ")

Regards

-- 
Christophe Dang Ngoc Chan
Mechanical calculation engineer

______________________________________________________________________

This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error), please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
______________________________________________________________________


From tanthiamhuat at yahoo.com  Wed Aug 27 15:28:56 2014
From: tanthiamhuat at yahoo.com (tanthiamhuat)
Date: Wed, 27 Aug 2014 06:28:56 -0700 (PDT)
Subject: [Scilab-users] Double Summation in Scilab
Message-ID: <1409146136483-4031100.post@n3.nabble.com>

how do we do a double summation in Scilab, which itself include summation
too?
example see picture attached.
can I have some code templates?



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From grivet at cnrs-orleans.fr  Wed Aug 27 15:34:49 2014
From: grivet at cnrs-orleans.fr (grivet)
Date: Wed, 27 Aug 2014 15:34:49 +0200
Subject: [Scilab-users] truncated postscript image
In-Reply-To: <53CE86D6.5040006@inria.fr>
References: <1406021922863-4030943.post@n3.nabble.com>
 <53CE86D6.5040006@inria.fr>
Message-ID: <53FDDE79.1090008@cnrs-orleans.fr>

Hi,
I believe there is a bug in the export function for postscript and 
encapsulated postscript, under win7, 64bits,
with both Scilab 5.4.1 and 5.5.

When I use a wide plotting window  and then choose export to 
[encapsulated] postscript, then the
resulting figure is truncated; its width is never larger than 600 
pixels. This behavior is independant
of the choice portrait/landscape. Could the problem be linked to the use 
of wide (16x9) screens ?

On the other hand, export to .gif or to .pdf works fine.

Can somebody confirm this bug ?
JP Grivet


From tanthiamhuat at yahoo.com  Thu Aug 28 03:05:58 2014
From: tanthiamhuat at yahoo.com (tanthiamhuat)
Date: Wed, 27 Aug 2014 18:05:58 -0700 (PDT)
Subject: [Scilab-users] Double Summation in Scilab
In-Reply-To: <1409146136483-4031100.post@n3.nabble.com>
References: <1409146136483-4031100.post@n3.nabble.com>
Message-ID: <1409187958396-4031102.post@n3.nabble.com>

the formuation is as below:

http://postimg.org/image/cg25hlzvh/



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From antoine.monmayrant at laas.fr  Thu Aug 28 07:53:25 2014
From: antoine.monmayrant at laas.fr (Antoine Monmayrant)
Date: Thu, 28 Aug 2014 07:53:25 +0200
Subject: [Scilab-users] Double Summation in Scilab
In-Reply-To: <1409187958396-4031102.post@n3.nabble.com>
References: <1409146136483-4031100.post@n3.nabble.com>
 <1409187958396-4031102.post@n3.nabble.com>
Message-ID: <53FEC3D5.1040200@laas.fr>

Le 28/08/14 03:05, tanthiamhuat a ?crit :
> the formuation is as below:
>
> http://postimg.org/image/cg25hlzvh/
>
>
>
> --
> View this message in context: http://mailinglists.scilab.org/Double-Summation-in-Scilab-tp4031100p4031102.html
> Sent from the Scilab users - Mailing Lists Archives mailing list archive at Nabble.com.
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users
>
If you have stored the terms of your sum in a matrix "mat", let's say 
with "t" index for the row and "p" index for the column, you can sum 
over "t" using "sum(mat, 'r')", sum over "p" using "sum(mat, 'c')" and 
sum everything using "sum(mat)".

Hope it helps,

Antoine


From Christophe.Dang at sidel.com  Thu Aug 28 16:22:09 2014
From: Christophe.Dang at sidel.com (Dang, Christophe)
Date: Thu, 28 Aug 2014 16:22:09 +0200
Subject: [Scilab-users] Pairwise distance of a huge amount of points
Message-ID: <3B5FFC67498DFF49AE7271A584867D16F40BB4FA68@301EX00100.sidel.com>

Hello,

I need to compute the pairwise distance of a huge amount of points, namely n = 49545.

I re-read a previous discussion
http://mailinglists.scilab.org/Plot-overlays-on-images-tp2617675p4030599.html

So, I'm trying yo avoid loops,
but I need then at least to have a vectors, or sparse matrices, containing n*(n+1)/2 elements,
i.e. 1.227D+09, which of course exceeds the maximum stacksize.

Any hint?

FYI, three vectors of size n called X0, Y0 and Z0,
the following procedure works well for small vectors
(I tried with n = 1000)

// ********** 
n = size(X0, "r"); // amount of points

uns = sparse(triu(ones(n, n))); // sparse upper triangle matrix of ones

Xd = meshgrid(X0).*uns;
Yd = meshgrid(Y0).*uns;
Zd = meshgrid(Z0).*uns;
Xf = meshgrid(X0)'.*uns;
Yf = meshgrid(Y0)'.*uns;
Zf = meshgrid(Z0)'.*uns;
D = sqrt((Xf - Xd).^2 + (Yf - Yd).^2 + (Zf - Zd).^2);
// **********

in my case, it stops at step 2.

The limiting operation is ones(n, n), which requires a n*n matrix.
Using directly sparse() also requires a n^2 vector.

It might be possible to work with higher values of n by generating a sparse matrix without generating a n*n matrix (or a n^2 vector), as there are only n*(n+1)/2 non-zeroes values -- Is it possible?

(Anyway, in my case, it is still too big).

-- 
Christophe Dang Ngoc Chan
Mechanical calculation engineer

______________________________________________________________________

This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error), please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
______________________________________________________________________


From sgougeon at free.fr  Thu Aug 28 23:58:52 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Thu, 28 Aug 2014 23:58:52 +0200
Subject: [Scilab-users] Pairwise distance of a huge amount of points
In-Reply-To: <3B5FFC67498DFF49AE7271A584867D16F40BB4FA68@301EX00100.sidel.com>
References: <3B5FFC67498DFF49AE7271A584867D16F40BB4FA68@301EX00100.sidel.com>
Message-ID: <53FFA61C.4040905@free.fr>

Hello Christophe,

Le 28/08/2014 16:22, Dang, Christophe a ?crit :
> Hello,
>
> I need to compute the pairwise distance of a huge amount of points, namely n = 49545.
>
> I re-read a previous discussion
> http://mailinglists.scilab.org/Plot-overlays-on-images-tp2617675p4030599.html
>
> So, I'm trying yo avoid loops,
I'm afraid you can't. You will need one loop over slices along one of 
both dimensions.
Such a slicing algorithm in an identical situation is used inside 
members.sci.
You may edit it and see.

HTH
Samuel



From tanthiamhuat at yahoo.com  Fri Aug 29 00:39:41 2014
From: tanthiamhuat at yahoo.com (tanthiamhuat)
Date: Thu, 28 Aug 2014 15:39:41 -0700 (PDT)
Subject: [Scilab-users] Double Summation in Scilab
In-Reply-To: <1409187958396-4031102.post@n3.nabble.com>
References: <1409146136483-4031100.post@n3.nabble.com>
 <1409187958396-4031102.post@n3.nabble.com>
Message-ID: <1409265581495-4031107.post@n3.nabble.com>

thanks for the hint, I would try out that.



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From lgunseor at boumatic.com  Thu Aug 28 18:54:30 2014
From: lgunseor at boumatic.com (lgunseor at boumatic.com)
Date: Thu, 28 Aug 2014 11:54:30 -0500
Subject: [Scilab-users] having an issue with 5.5.0 release
Message-ID: <CB05E881A74FC0428D2902025B2C2E4903ADB848@boumail3.boumatic.local>

When using 5.4.1 or the 5.5 beta version I don't have any issues with my
program, it runs fine with no errors.  When running it on the latest
5.5.0 release I get errors (see below) and some of the plots are missing
from the graph.

 

plot2d(X,Y)
            !--error 999 
plot2d: Wrong size for input arguments: Incompatible sizes.
 
Error 999 : in plot2d called by plotplot2d(X,Y)
            !--error 999 
plot2d: Wrong size for input arguments: Incompatible sizes.
 
Error 999 : in plot2d called by plot

 

 

Attached is the program along with the data being used for the program.
Is this a bug issue with the latest 5.5.0 release.  Don't understand why
I'm getting these errors.

 

Larry A. Gunseor

Systems Architecture Engineer


BouMatic 
PO Box 8050 
Madison, WI 53708 
lgunseor at boumatic.com <mailto:lgunseor at boumatic.com>   
+1.608.316.3415 Office 
+1.608.636.0026 Mobile 
+1.608.222.9314 Fax 

 

 

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From simon.bedert at gmail.com  Fri Aug 29 08:24:22 2014
From: simon.bedert at gmail.com (simon bedert)
Date: Fri, 29 Aug 2014 08:24:22 +0200
Subject: [Scilab-users] Scilab 5.5.0 error 17 on startup
Message-ID: <CAB2cvr8M5vaUKmPguSQRFTXRkYSAqScRanGY9tZSiPihQ_dKDQ@mail.gmail.com>

Dear Scilab Users,

Yesterday, I installed and worked with Scilab 5.5.0 on my office computer.
Coming back today (office PC has hibernated through the night), I get the
following error every time I start up Scilab, even after a reboot:

Warning !!!
Scilab has found a critical error (EXCEPTION_ACCESS_VIOLATION)
with "predef" function.
Save your data and restart Scilab.
return
 !--error 17
stack size exceeded!
Use stacksize function to increase it.
Memory used for variables: 105
Intermediate memory needed: 179903
Total memory available: 180006
at line    **** of function  called by :
endfunction
at line      42 of exec file called by :
exec('SCI/etc/scilab.start',-1);;

 I'm running Scilab on a PC with an Intel Xeon E5530 CPU (2.4 GHz), with 4
GB RAM and windows 7 64 bit operating system, so I do not expect
performance to be the issue.

Any ideas?

Thank you in advance,

Simon Bedert
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From Christophe.Dang at sidel.com  Fri Aug 29 09:29:43 2014
From: Christophe.Dang at sidel.com (Dang, Christophe)
Date: Fri, 29 Aug 2014 09:29:43 +0200
Subject: [Scilab-users] Pairwise distance of a huge amount of points
In-Reply-To: <53FFA61C.4040905@free.fr>
References: <3B5FFC67498DFF49AE7271A584867D16F40BB4FA68@301EX00100.sidel.com>
 <53FFA61C.4040905@free.fr>
Message-ID: <3B5FFC67498DFF49AE7271A584867D16F40BB4FC7E@301EX00100.sidel.com>

Hello, 

> De Samuel Gougeon
> Envoy? : jeudi 28 ao?t 2014 23:59
>
> You will need one loop over slices along one of both dimensions.
> Such a slicing algorithm in an identical situation is used inside members.sci.

OK, I just overlooked the file but am lazy to read a 400 lines script and prefered to write from scratch (-:

My script so far looks like

// **********

n = size(X0, "r"); // amount of points

dmax = 0;

for i = 1:n-1
    d = max(sqrt((X0(1:$-i) - X0(i+1:$)).^2 + (Y0(1:$-i) - Y0(i+1:$)).^2 +...
        (Z0(1:$-i) - Z0(i+1:$)).^2));
    if d > dmax then
        dmax = d;
    end
end

// **********

tested on a subset of 1000 data, it gives the same result as the naive n^2 calculation, and is 64 times faster.

Thanks for the help.

-- 
Christophe Dang Ngoc Chan
Mechanical calculation engineer

______________________________________________________________________

This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error), please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
______________________________________________________________________


From Christophe.Dang at sidel.com  Fri Aug 29 12:58:03 2014
From: Christophe.Dang at sidel.com (Dang, Christophe)
Date: Fri, 29 Aug 2014 12:58:03 +0200
Subject: [Scilab-users] Pairwise distance of a huge amount of points
In-Reply-To: <3B5FFC67498DFF49AE7271A584867D16F40BB4FC7E@301EX00100.sidel.com>
References: <3B5FFC67498DFF49AE7271A584867D16F40BB4FA68@301EX00100.sidel.com>
 <53FFA61C.4040905@free.fr>
 <3B5FFC67498DFF49AE7271A584867D16F40BB4FC7E@301EX00100.sidel.com>
Message-ID: <3B5FFC67498DFF49AE7271A584867D16F40BB4FE3B@301EX00100.sidel.com>

Just to close the subject:

I tried to implement the algorithm with sparse matrices, and it is less efficient than scanning over one dimension: 7 times faster than the naive algorithm.

If I generate the sparse matrix from a n*(n-1)/2 vector,
it is even worse: less efficient than the naive algorithm (1.1 times longer),
this only to gain a factor 2 on the amount of points that can be handeled.

Conclusion: forget the sparse matrices for this application.

--
Christophe Dang Ngoc Chan
Mechanical calculation engineer

______________________________________________________________________

This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error), please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
______________________________________________________________________


From shorne at energetiq.com  Fri Aug 29 16:38:19 2014
From: shorne at energetiq.com (shorne at energetiq.com)
Date: Fri, 29 Aug 2014 10:38:19 -0400
Subject: [Scilab-users] Pairwise distance of a huge amount of points
In-Reply-To: <3B5FFC67498DFF49AE7271A584867D16F40BB4FE3B@301EX00100.sidel.com>
References: <3B5FFC67498DFF49AE7271A584867D16F40BB4FA68@301EX00100.sidel.com>
 <53FFA61C.4040905@free.fr>
 <3B5FFC67498DFF49AE7271A584867D16F40BB4FC7E@301EX00100.sidel.com>
 <3B5FFC67498DFF49AE7271A584867D16F40BB4FE3B@301EX00100.sidel.com>
Message-ID: <OF002D0D91.4C3C8EFF-ON85257D43.004FF50C-85257D43.005069BE@energetiq.com>

Jumping in late -- 
If your goal is to find nearest the N neighbors of a given point, look up 
the K-D Tree algorithm --( I used it some decades ago...  in my case the 
points were each of higher dimension -- around 9 or so.)

And if that is the application, and you want to go fast - consider using 
something other than the L-2 norm to set up the tree.  L-1 should be much 
faster - sum of absolute values of component distances; no squaring or 
square roots -- "Manhattan norm"
Once you have built the tree and retrieved a bunch of nearest neighbors, 
you can of course compute the L-2 distances over that much smaller set, if 
necessary...

S





From:
"Dang, Christophe" <Christophe.Dang at sidel.com>
To:
"International users mailing list for Scilab." <users at lists.scilab.org>, 
Date:
08/29/2014 06:58 AM
Subject:
Re: [Scilab-users] Pairwise distance of a huge amount of points
Sent by:
"users" <users-bounces at lists.scilab.org>



Just to close the subject:

I tried to implement the algorithm with sparse matrices, and it is less 
efficient than scanning over one dimension: 7 times faster than the naive 
algorithm.

If I generate the sparse matrix from a n*(n-1)/2 vector,
it is even worse: less efficient than the naive algorithm (1.1 times 
longer),
this only to gain a factor 2 on the amount of points that can be handeled.

Conclusion: forget the sparse matrices for this application.

--
Christophe Dang Ngoc Chan
Mechanical calculation engineer

______________________________________________________________________

This e-mail may contain confidential and/or privileged information. If you 
are not the intended recipient (or have received this e-mail in error), 
please notify the sender immediately and destroy this e-mail. Any 
unauthorized copying, disclosure or distribution of the material in this 
e-mail is strictly forbidden.
______________________________________________________________________
_______________________________________________
users mailing list
users at lists.scilab.org
http://cp.mcafee.com/d/1jWVIe418SyNsQsITd79EVpKrKrsKDtCXUUSVteXaaapJOWtSrLL6T4S7bLzC3t2toMY5v3UAvD8mVsTYfyh-sxrBPrTSvLtx_HYCCyyyyqeuLsKyqerTVBdV4sMZORQr8EGTsjVkffGhBrwqrhdECXYCej79zANOoUTsS03fBiteFqh-Ae00U9GX33VkDa3JsrFYq6SWv6xsxlK5LE2zVkDjGmAvF3w09JZdNcS2_id41Fr6bifQwnrFYq6BQQg1rphciFVEwgBiuMJVEwGWq8dd41dIzVEwRmHs9Cy2HFEwmHa4W6T6jp-xPMhmc


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From sgougeon at free.fr  Fri Aug 29 23:38:52 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Fri, 29 Aug 2014 23:38:52 +0200
Subject: [Scilab-users] having an issue with 5.5.0 release
In-Reply-To: <CB05E881A74FC0428D2902025B2C2E4903ADB848@boumail3.boumatic.local>
References: <CB05E881A74FC0428D2902025B2C2E4903ADB848@boumail3.boumatic.local>
Message-ID: <5400F2EC.7090200@free.fr>

Le 28/08/2014 18:54, lgunseor at boumatic.com a ?crit :
>
> When using 5.4.1 or the 5.5 beta version I don't have any issues with 
> my program, it runs fine with no errors.  When running it on the 
> latest 5.5.0 release I get errors (see below) and some of the plots 
> are missing from the graph.
>
> plot2d(X,Y)
>             !--error 999
> plot2d: Wrong size for input arguments: Incompatible sizes.
>
> Error 999 : in plot2d called by plotplot2d(X,Y)
>             !--error 999
> plot2d: Wrong size for input arguments: Incompatible sizes.
>
> Error 999 : in plot2d called by plot
>
> Attached is the program along with the data being used for the 
> program.  Is this a bug issue with the latest 5.5.0 release.  Don't 
> understand why I'm getting these errors.
>
How to debug?
1) Since it is not properly identified with whereis() in the error 
message => look for the plotting instruction yielding the error. To do 
so, no chance to succeed by running the whole script in a blind way. Run 
it step by step, selecting the whole starting part, down to the first 
plotting instruction that could trigger the error, and run the 
selection. If there is no error, select the following lines down to the 
next plotting instruction ; run them, and see. etc.. down to the plot 
yielding the error.
2) For this plotting instruction : display the size of each of the first 
two input parameters, and compare them.
3) Look in the help page of the involved plot/plot2 instruction whether 
the format of input parameters that you try to pas to the plot is 
accepted or not.

You will see that it is not the case. There are indeed mismatching 
parameters.
4) correct your program.
5) test it.

HTH
Samuel

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From sgougeon at free.fr  Fri Aug 29 23:50:52 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Fri, 29 Aug 2014 23:50:52 +0200
Subject: [Scilab-users] Pairwise distance of a huge amount of points
In-Reply-To: <3B5FFC67498DFF49AE7271A584867D16F40BB4FC7E@301EX00100.sidel.com>
References: <3B5FFC67498DFF49AE7271A584867D16F40BB4FA68@301EX00100.sidel.com>
 <53FFA61C.4040905@free.fr>
 <3B5FFC67498DFF49AE7271A584867D16F40BB4FC7E@301EX00100.sidel.com>
Message-ID: <5400F5BC.4000901@free.fr>

Le 29/08/2014 09:29, Dang, Christophe a ?crit :
> Hello,
>
>> De Samuel Gougeon
>> Envoy? : jeudi 28 ao?t 2014 23:59
>>
>> You will need one loop over slices along one of both dimensions.
>> Such a slicing algorithm in an identical situation is used inside members.sci.
> OK, I just overlooked the file but am lazy to read a 400 lines script and prefered to write from scratch (-:
Yes. Actually the algo in members()  defines and runs over multiline 
slices, that shortens a lot the number of iterations in the explicit 
loop (in order to maximize the vectorized (and so faster) processing of 
the bloc/slice), but is more complex to implement.
Since using single lines in the loop already saves a lot of time for 
your case, and is enough, simplicity is smarter.

Samuel



From sgougeon at free.fr  Sat Aug 30 00:01:37 2014
From: sgougeon at free.fr (Samuel Gougeon)
Date: Sat, 30 Aug 2014 00:01:37 +0200
Subject: [Scilab-users] Pairwise distance of a huge amount of points
In-Reply-To: <3B5FFC67498DFF49AE7271A584867D16F40BB4FE3B@301EX00100.sidel.com>
References: <3B5FFC67498DFF49AE7271A584867D16F40BB4FA68@301EX00100.sidel.com>
 <53FFA61C.4040905@free.fr>
 <3B5FFC67498DFF49AE7271A584867D16F40BB4FC7E@301EX00100.sidel.com>
 <3B5FFC67498DFF49AE7271A584867D16F40BB4FE3B@301EX00100.sidel.com>
Message-ID: <5400F841.3050405@free.fr>

Le 29/08/2014 12:58, Dang, Christophe a ?crit :
> Just to close the subject:
>
> I tried to implement the algorithm with sparse matrices, and it is less efficient than scanning over one dimension: 7 times faster than the naive algorithm.
Yes, it was somewhat expected. Also for memory consumption, the sparse 
encoding becomes interesting vs the dense encoding only when the 
sparsity becomes smaller than .. 50%.
There was a quite recent thread on bugzilla, about the relevance of 
keeping a sparse encoding for the result of cos(SP) where SP is a sparse 
(so with a good fraction of null values).
It was finally -- wisely -- decided (after some tests) to switch to a 
dense encoding for that case (as it should be for any function turning 0 
into a non-null value).

Samuel



From sdr at durietz.se  Sat Aug 30 13:14:05 2014
From: sdr at durietz.se (Stefan Du Rietz)
Date: Sat, 30 Aug 2014 13:14:05 +0200
Subject: [Scilab-users] integers?
Message-ID: <5401B1FD.1080504@durietz.se>

Hello,
I got a strange error and tried to debug it:

-1->dv
  dv  =
     2014.    8.    31.    8.    0.

Is the third element more than the number of days in the month?

-->eday = eomday(2014, 8)
  eday  =
     31.
-1->incmon = find(dv(:, 3) > eday)
  incmon  =
     1.

But both are integers 31.:

-1->[dv(3), eday]
  ans  =
     31.    31.

So why these:

-1->dv(3) > eday
  ans  =
   T
-1->dv(3)==31.
  ans  =
   F
-1->dv(3) - 31.
  ans  =
     3.881D-11

Regards
Stefan