[R-sig-eco] vegan::adonis, SS, order of terms

Oliver Soong osoong+r at gmail.com
Wed Feb 1 05:08:31 CET 2012


Are the vegan::adonis sums of squares supposed to depend on the order of the
terms?  I'm trying to understand permutational MANOVA, and this
disagrees with my reading of Anderson 2001.

library(vegan)
data(dune)
data(dune.env)
adonis(dune ~ A1 + Management, dune.env)
adonis(dune ~ Management + A1, dune.env)

Any help would be appreciated.

Oliver



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