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Problem with pdist


From: Esteban Cervetto
Subject: Problem with pdist
Date: Wed, 14 Jul 2010 15:09:39 -0300

Hello:
 
I am having problems with the pdist function. It seems not to do enough strong to calculate the next problem:
 
 
octave:22> pdist(X,"mahalanobis")

error: memory exhausted or requested size too large for range of Octave's index

type -- trying to return to prompt

octave:22> size(X)

ans =

2 8993

octave:23>

 

 

However, Mahalanobis distance is usually used in datamining studies, and a sample of 8993 registers and two variables is small.

 

It exist a form to improve dramatically the efficiency of octave with functions related with data mining or pattern classification?

 

Links to similar topics are well received.

 

 

Regards

 

 

Esteban


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