[R-sig-eco] correlation between dissimilarity matrices

[Paolo Piras]

Hi Carlos
Very briefly...
you could look at rda() in vegan (not that in calibrate)
partial and constrianed rda seems to be appropriate for your case.
Maybe you should code a bit for controlling your nested stratification variable even if it is not very clear to me the nature of the data (sites vs location)
I mean.. how exactly they are structured?
best
paolo



________________________________________
Da: r-sig-ecology-bounces at r-project.org <r-sig-ecology-bounces at r-project.org> per conto di Carlos <liuca16 at hotmail.com>
Inviato: mercoledì 21 maggio 2014 20.57
A: r-sig-ecology at r-project.org
Oggetto: [R-sig-eco] correlation between dissimilarity matrices

Hello, I am working with two dissimilarity matrices containing
dissimilarities in taxonomic community structure and environmental
variables, respectively, between different sites. Those sites are grouped in
three different locations. I know I can obtain the correlation between both
matices by using a Mantel test. However, I would also like to know the
correlation between both matrices after removing the effect of the
dissimilarities between locations, i.e. only considering the dissimilarties
within locations. How could I do it?

Thank you very much,

Carlos



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