[R-sig-eco] SIMPER analysis

[Etienne Laliberté]

I've never used SIMPER and don't remember the details of the analysis
(though like all other PRIMER methods I assume it takes the ranks of the
dissimilarities). However, I'm sure that canonical analysis of principal
coordinates (Anderson and Wills 2003, Ecology) would be useful here.
It's available in the PERMANOVA+ add-on to PRIMER v6. In R, it has been
implemented as capscale() in the vegan package, with some modifications.

> Date: Tue, 24 Nov 2009 12:53:40 +0100
> From: Nicolas Moity <dianicus at gmail.com>
> Subject: [R-sig-eco] SIMPER analysis
> To: r-sig-ecology at r-project.org
> Message-ID:
> 	<f3fbe11b0911240353n4986e1a9j3f7217f91c059ec3 at mail.gmail.com>
> Content-Type: text/plain
> 
> Hello,
> 
> Does anyone know if the SIMPER analysis is implemented in R? It is a
> multivariate analysis that shows the contribution of a each variable in a
> group, and the variables responsible for the difference between groups. It
> is implemented in the statistical package PRIMER and is frequently used in
> biological studies (community level).
> 
> Any help is strongly appreciated,
> thank you in advance,
> 
> Nico