[R-sig-eco] forward selection of significant eigenvectors

[Tim Richter-Heitmann]

Dear Irene,

i found this tutorial very useful:

https://sites.ualberta.ca/~ahamann/teaching/renr690/Lab9.pdf

You basically do a forward selection (forward.sel() from packfor 
package) using the adjusted R-square (RsquareAdj() from vegan package).

Hope this helps, Tim

Am 06.06.2019 um 16:34 schrieb Irene Adamo:
> Dear all,
>
> I am trying to run a variaion partitioning in using the varpart function in
> vegan. I would like to include the geographic coordinates as explanatory
> variables so I calculated the principle coordinates of neighbour matrices.
> Now I would like to perform a selection of the significant spatial
> eigenvectors but I don`t know how to do it in R. Could anybody help me?
>
> data(mite.xy)
> pcnm1 <- pcnm(dist(mite.xy))
>
> then I get the pcnm vectors and I would like to select only the
> significant ones.
>
> Thanks a lot!
>
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>
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-- 
Dr. Tim Richter-Heitmann

University of Bremen
Microbial Ecophysiology Group (AG Friedrich)
FB02 - Biologie/Chemie
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D-28359 Bremen
Tel.: 0049(0)421 218-63062
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