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Today's Topics:
1. Re: adonis question (Kay Cecil Cichin
ent: Friday, 24 June 2011 9:31 PM
To: r-sig-ecology
Subject: [R-sig-eco] adonis question
hi all,
i played around with adonis and came across a result that i can't
explain - more precisely i get a sign interaction-effect where i
suppose there should be none:
library(vegan)
# species matrix/
il Cichini
Sent: Friday, 24 June 2011 9:31 PM
To: r-sig-ecology
Subject: [R-sig-eco] adonis question
hi all,
i played around with adonis and came across a result that i can't
explain - more precisely i get a sign interaction-effect where i
suppose there should be none:
library(vegan)
# sp
hi all,
i played around with adonis and came across a result that i can't
explain - more precisely i get a sign interaction-effect where i
suppose there should be none:
library(vegan)
# species matrix/df
spdf <- matrix(NA, 60, 4, dimnames = list(1:60, c("sp1", "sp2", "sp3",
"sp4")))
spd
Hi Jaime,
The interactions are just a matter of defining the formula as such, e.g.
adonis(dist~factor1*factor2).
I suppose, a multiple comparison (with the reasoning of a post-hoc test)
can just be done using adonis() for pairwise comparisons and then use
p.adjust().
Cheers, gabriel
On 12/
Hi
After performing a permutational ANOVA with adonis in vegan, is there a way
to do multiple comparisons for significant factors with more than 2 levels
as well for significant interactions? Any help would be very much
appreciated
Thanks,
Jaime
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