[scilab-Users] Weird behaviour dealing with matrices

[Adrien Vogt-Schilb]

Hi

are you sure you are not using "pause", for instance?

pause calls a new memory level


On 14/06/2011 15:47, Eduardo Torrecillas wrote:
> Hi Adrien,
>
> Thanks for your reply, but that's not exactly what I meant.
> I understand in your example we're dealing with passing variables 
> through different functions. In my case, it's all inside the same 
> function.
> Also, apparently the behaviour is erratic: it works sometimes and 
> sometimes not.
>
> Regards,
>
> On Tue, Jun 14, 2011 at 10:26 AM, Adrien Vogt-Schilb 
> <vogt at centre-cired.fr <mailto:vogt at centre-cired.fr>> wrote:
>
>     Hi Edouardo
>
>     This is not a bug, but a feature!
>
>     you should read this :
>     http://wiki.scilab.org/howto/global%20and%20local%20variables
>
>     In the commented example, look for the following line :
>
>        x(3)=56          // note that at this point x=[0 0 56] because of 3. above, *not* [45 0 56]
>
>     this is exactly want happened to you
>
>
>
>     On 13/06/2011 22:11, Eduardo Torrecillas wrote:
>>     Hi all,
>>
>>     I have some piece of code and noticed some strange behaviour. As
>>     the code is complex and involves external compilation, it is a
>>     little bit difficult to post it here, so I will try to explain it
>>     in a general way.
>>
>>     At some point in the code, I have a structure called
>>     interpolados, having 3 matrices. So, I have
>>
>>     interpolados(1).matriz
>>     interpolados(2).matriz
>>     interpolados(3).matriz
>>
>>     all of them are sized 497 x 95.
>>
>>     Later on, when trying to substitute a column of one of this
>>     matrices, I get it destroyed.
>>     The syntax I'm using is:
>>
>>     interpolados(1).matriz(:,3)=13
>>
>>     I was expecting to maintain the matrix and change only its third
>>     column, all with 13. Actually what I'm getting is that
>>     interpolados(1).matriz is no longer 497 x 95, but 497 x 1 (only 1
>>     column, all full with 13).
>>
>>     System summary: Ubuntu 10.10 64bit + Scilab 5.3.2
>>
>>     Has anybody experienced that? Any issues?
>>
>>     Regards,
>>
>>
>>     -- 
>>     Eduardo Torrecillas
>
>
>     -- 
>
>     *Adrien Vogt-Schilb*
>
>     Research Fellow
>
>     vogt at centre-cired.fr <mailto:vogt at centre-cired.fr>
>
>     Tel: (+33) 1 43 94 73 96
>
>     Fax: (+33) 1 43 94 73 70
>
>     CIRED
>
>     	
>
>     45 bis, Av de la Belle Gabrielle
>
>     F-94736 Nogent-sur-Marne
>
>     http://www.centre-cired.fr/
>
>
>
>
> -- 
> Eduardo Torrecillas
> AER-09


-- 

*Adrien Vogt-Schilb*

Research Fellow

vogt at centre-cired.fr <mailto:vogt at centre-cired.fr>

Tel: (+33) 1 43 94 73 96

Fax: (+33) 1 43 94 73 70

CIRED

	

45 bis, Av de la Belle Gabrielle

F-94736 Nogent-sur-Marne

http://www.centre-cired.fr/

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.scilab.org/pipermail/users/attachments/20110614/02497bbe/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: logocired.png
Type: image/png
Size: 4092 bytes
Desc: not available
URL: <https://lists.scilab.org/pipermail/users/attachments/20110614/02497bbe/attachment.png>