[R-sig-eco] Pariwise tests in ANOSIM (and/or ADONIS)

[Simon de Lestang]

Jari, thank you for your response.  I think you are correct about the non-R software. 

Simon

-----Original Message-----
From: Jari Oksanen [mailto:jari.oksanen at oulu.fi] 
Sent: Wednesday, 5 June 2013 1:01 PM
To: Simon de Lestang
Cc: r-sig-ecology at r-project.org
Subject: Re: [R-sig-eco] Pariwise tests in ANOSIM (and/or ADONIS)


On 05/06/2013, at 03:25 AM, Simon de Lestang wrote:

> I have what I am sure is a very simple question relating to the package vegan, although I have not been able to solve it via Google.
> Using the function anosim I am only able to produce a global result in the output.
> Is it possible to produce all pairwise comparisons (corrected) in a single output or are these to be conducted individually? (individual pairwise tests).
> I guess my question would also relate to the function adonis.


Dear Simon,

Pairwise tests are not possible in vegan. My understanding is that the non-R software with such tests makes separate pairwise tests using subsets of data with only two levels of a factor in one tests. We don't provide that in vegan and have no plans to provide this in the future. 

Cheers, Jari Oksanen
-- 
Jari Oksanen, Dept Biology, Univ Oulu, 90014 Finland