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.

I searched for this error in the help of the Protest function but I did not
succeed.

Please, could you help me?

Thanks a lot in advance

-- 
Atenciosamente,
*Diogo Borges Provete*

==============================
Biólogo
Mestre em Biologia Animal (UNESP)
Discente (Doutorado) PPG Ecologia e Evolução
Departamento de Ecologia
Instituto de Ciências Biológicas
Universidade Federal de Goiás - UFG
Goiânia-GO
CEP 74001-970 CP: 131
Brazil
*
*: diogoprovete
**: diogoprov@yahoo.com.br

*Personal web page <https://sites.google.com/site/diogoprovetepage/>*

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