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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/

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.

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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