Hi Jari,
Thanks for the information. Indeed the two matrices aren“t of the same size
and have different numbers of rows.
I will edit them and re-run the test.

Have a nice day,
Diogo

2011/2/16 Jari Oksanen <jari.oksanen@oulu.fi>

> On 16/02/11 21:33 PM, "Diogo B. Provete" <dbprovete@gmail.com> wrote:
>
> > Dear all,
> > I have two species by site matrices that I“d like to test for community
> > concordance. All the needed previous steps to use the protest function in
> > the vegan package are OK. But when I run the following command:
> >
> > protest(scordcacomA, scordcacomB, scores = "sites", permutations =
> > 10000)->comAcomB
> >
> > I receive that error message: Error in crospord(X, Y), arguments not
> > compatible.
> >
> Usually this error means that arguments are not compatible. Normally they
> have different numbers of rows. What do you get from
> dim(scores(scordcacomA,
> dis = "sit")) and dim(scores(scordcacomB, dis="sit"))?
>
> Cheers, Jari Oksanen
>
>


-- 
Atenciosamente,
*Diogo Borges Provete*

==============================
Biólogo
Mestre em Biologia Animal (UNESP)
Discente (Doutorado) PPG Ecologia e Evoluēćo
Departamento de Ecologia
Instituto de Ciźncias Biológicas
Universidade Federal de Goiįs - UFG
Goiānia-GO
CEP 74001-970 CP: 131
Brazil
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