[Scilab-users] finding similar values with scilab

[Paul CARRICO]

Did you have a look to "awk" and "sed" tools that can be used in conjunction
with Scilab ?



-----Message d'origine-----
De : users [mailto:users-bounces at lists.scilab.org] De la part de
samaelkreutz
Envoyé : vendredi 21 février 2014 06:18
À : users at lists.scilab.org
Objet : [Scilab-users] finding similar values with scilab

Hello!!! I have a big question !
I have a biiiiiiiiiiig data archive with text files with the form:

18.87 2.6 0.00545558
19.98 2.6 0.00225349
18.87 2.6 0.00405905
13.32 2.6 0.01338288
19.98 2.6 0.01537532
18.87 2.6 0.00481375
19.98 2.6 0.00936207
12.21 2.6 0.00558517

I need  eliminate extreme values, for example: If I plot a random text file
I obtain a image like this:

<http://mailinglists.scilab.org/file/n4028792/Captura_de_pantalla_2014-02-21
_a_la%28s%29_2.07.54.png> 

As you can see theres points extremes. If i make a zoom 

DN=find(DM(:,3)<=0.0001 & DM(:,3)>=0.00002 )
dn=DM(DN,:)
figure(2)
plot(dn(:,1),dn(:,3),'O')

I have this picture

<http://mailinglists.scilab.org/file/n4028792/Captura_de_pantalla_2014-02-21
_a_la%28s%29_2.10.56.png> 


My question is: Has scilab a command that can help me to find the "dense
data" , I mean find all the values that are similar. I ask this cause I have
about 20,000 text files and is imposible for me make "artesal zoms".

Please any suggestion, answer going to help me. 




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