[R-sig-eco] permutation for PCA

Fri Dec 18 15:38:41 CET 2009

maybe PCAsignificance() in package {BiodiversityR} could be of help...

cheers, gabriel

Dragos Zaharescu wrote:
> Hi everyone,
> I was struggling for a while with performing a permutation/crossvalidation test of nonlinear PCA in order to assess the significance of the contribution of the separate variables to the nonlinearPCA solutions. Does anyone have an idea on how/package to perform this. For PCA maybe?
> Any hint would be much appreciated.
> Â 
> Dragos
>
>
>
> Dragos Zaharescu
> Animal Anatomy Laboratory
> Faculty of Biological Sciences
> Vigo University, apd. 137
> 36310, Vigo (Pontevedra), SPAIN
> zaha_dragos at yahoo.com
> zdragos at uvigo.es
> http://webs.uvigo.es/zdragos/
>
> ~ You should be the change you want to see in the worldÂ ~ Ghandi
>
>