Re: [R-sig-eco] how are compuetd the species scores of pca from veganpackage ?

Dear Jari, You're right I missed the Design decision vignettesorry for that. Thanks you so much for your reply. All the best Claire Della Vedova -Message d'origine- De : Jari Oksanen [mailto:jari.oksa...@oulu.fi] Envoyé : mardi 27 mai 2014 10:43 À : claire della vedova; r-sig-ecolo

Re: [R-sig-eco] how are compuetd the species scores of pca from veganpackage ?

Dear Claire Della Vedova, It seems that you have searched in many places, except in vegan documentation. Look at the vignette on Design decisions, section "Scaling in redundancy analysis". Cheers, Jari Oksanen From: r-sig-ecology-boun...@r-project.org

[R-sig-eco] how are compuetd the species scores of pca from vegan package ?

Hi everybody, I'm working on PCA approach, and comparing outputs from ade4 and vegan packages. I'm ok with the normalization of the variables coordinates coming from ade4 outputs. (with $co : coordinates are scaled to eigen values ; with $c1 : coordinates are scaled to 1). But I have difficultie