[R] interpreting evecs in pca (mulitv)

Lorenz Gygax lgygax at access.unizh.ch
Thu Feb 10 13:34:10 CET 2000

Dear R specialists and users,

can you help me with the interpretation of the $evecs in the result of a
pca from the library multiv? (I must ashamedly admit that this is still R
V 0.64.1 and multiv V 1.0-1)

I did a default pca which is supposed to normalise the variables before
rotating them. Now, I was trying to find out, whether the $evecs are the
loadings for the unstandardised or standardised variables. Thus, I tried
to calculate the linear combinations using the $evecs and either the
original variables or the standardised variables but neither seems to
result in the values that can be found in $rproj.

Do I miss something?

Many thanks and regards, Lorenz
Lorenz Gygax             LGygax at amath.unizh.ch;       room: 36-L-40
                         Department of Applied Mathematics
                         University of Zuerich-Irchel
                         Winterthurerstr. 190; CH-8057 Zurich
                         voice: 41-1-635-58-52  fax: 41-1-635-57-05

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