Re: Principle components analysis on a large dataset

[macy]

Same problem with 10-20MB data files, so I used this .bat file
echo off

echo  Expand Octave Memory
cd\
cd "Program Files"\"GNU Octave 2.1.50"\bin
regtool -i set "/HKCU/Software/GNU Octave/Cygwin/heap_chunk_in_mb" 1024
regtool -v list "/HKCU/Software/GNU Octave/Cygwin"
cd\

echo  DONE

may be in there is something that will help.

Robert


>
> Dear Sirs:
>
> Please pardon me I am very new to Octave. I have been using MATLAB.
>
> I was wondering if Octave would allow me to do principal components
> analysis
> on a very large
> dataset.
>
> Specifically, our dataset has 68800 variables and around 6000
> observations.
> Matlab gives "out of memory" errors. I have tried also doing princomp in
> pieces, but this does not seem to quite work for our approach.
>
> Anything that might help much appreciated. If anyone has had experience
> doing this in Octave much appreciated.
>
> Thank you
> Misha
> --
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