[R] Factor Loadings in Vegan's PCA

[afsouza at unisinos.br]

Hi all,

   I am using the vegan package to run a prcincipal components analysis
on forest structural variables (tree  density, basal area, average
height, regeneration density) in R.

   However, I could not find out how to extract factor loadings
(correlations of each variable with each pca axis), as is straightforwar
in princomp.

   Do anyone know how to do that?

   Moreover, do anyone knows a function r package that produces
rotated-pca and biplots? Most packages I found did only one of these
tasks (princomp, psych, vegan).

   Thanks a lot,

   Alexandre

Dr. Alexandre F. Souza 
Programa de Pós-Graduação em Biologia: Diversidade e Manejo da Vida
Silvestre
Universidade do Vale do Rio dos Sinos (UNISINOS)
Av. UNISINOS 950 - C.P. 275, São Leopoldo 93022-000, RS  - Brasil
Telefone: (051)3590-8477 ramal 1263
Skype: alexfadigas
afsouza at unisinos.br
http://www.unisinos.br/laboratorios/lecopop

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