[R] ADONIS triple interaction

[Jorge]

Hi,

I am a set data (bird abundance) from a a complete factorial scheme with
three factors (Age, Site and Management) and two treatments per factor. Each
combination of the factors was replicated four times (a total of 32 stands).

I am trying to use ADONIS (vegan) to check whether bird assemblages vary
according to these factors. I was checking the vegan tutorial, and there is
an example with a double interaction. But I can not find any case (internet)
with triple interactions.

I run adonis(donesp~esp$AGE*esp$SITE*esp$MANAG, permutations = 1000, method
= "bray").

The results sound good, but I am not very sure whether it is right to
include a third factor.

Cheers
Jorge



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