[R] Mantel test

[swertie]

oh yes of course. It is quite simple. I have two presence/absence matrices
(one for plants, one for butterflies) and I would like to test if the
butterfly community similarities is correlated with the plant community
similarities. The think is also that I don't really see the purpose of doing
a PCA, that's why I would have make the Mantel test directly from the
distance matrices



Tal Galili wrote:
> 
> Hi swertie ,
> Could you please add more details ?
> What field are you at, some links maybe ?
> 
> Thanks,
> Tal
> 
> 
> 
> 
> 
> On Mon, Sep 14, 2009 at 8:30 PM, swertie <v_coudrain at voila.fr> wrote:
> 
>>
>> Hello! It is not really linked to R, but can somebody explain me why we
>> sometimes make a mantel test directly for to distance matrices and
>> sometimes
>> we first make a gradient analysis and then a mantel test between the
>> axis?
>> Thank you
>> --
>> View this message in context:
>> http://www.nabble.com/Mantel-test-tp25439984p25439984.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
> 
> 
> 
> -- 
> ----------------------------------------------
> 
> 
> My contact information:
> Tal Galili
> Phone number: 972-50-3373767
> FaceBook: Tal Galili
> My Blogs:
> http://www.r-statistics.com/
> http://www.talgalili.com
> http://www.biostatistics.co.il
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
> 
> 

-- 
View this message in context: http://www.nabble.com/Mantel-test-tp25439984p25448834.html
Sent from the R help mailing list archive at Nabble.com.