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Re: how can I do Principal Components Analysis with octave?
From: |
Henry F. Mollet |
Subject: |
Re: how can I do Principal Components Analysis with octave? |
Date: |
Tue, 11 May 2004 18:52:58 -0700 |
User-agent: |
Microsoft-Entourage/10.1.1.2418 |
I believe you would need the programs doing the work. They are called
functions in Octave or Matlab, something like "PCA.m". I would be interested
myself so I checked using Google what MATLAB has:
Here is a list of the functions with a short description of each:
PRINCOMP - principal components from raw data matrix
PCACOV - pca from covariance matrix
PCARES - residuals from pca
BARTTEST - Bartlett's test for dimensionality.
Next I checked for the first two, namely "PRINCOMP" and "PCACOV" in
octave-forge but apparently neither is present. I guess we're out of luck
for the time being unless we have the capability to write the program.
Henry
on 5/11/04 1:04 AM, rino mailing at address@hidden wrote:
> I'd like to do Principal Components Analysis with octave
>
> What are the command I ave to write?
>
> How to plot the result?
>
>
>
> Thank you in advance for the time you spend to answer me, Mario.
>
>
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