[R] PCA centered
mop41059 at mail.telepac.pt
Fri Mar 12 16:16:29 CET 1999
I tried make a pca analysis with R. For this propose i need centered rows and
columns. I make this using the function princomp:
When i do it each column have mean=0 and standard deviation=1.
But i have this problem: the total inertia, sum of Eigenval., dont is =
=number of columns * 1= sum of total standard deviation
Why? It's a bug in R?
I have make online this analyse in
and everything it's OK.
Thanks in advance
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