Hi All,

I am trying to perform CCA and RDA several times to compare their
performances. To do that I put this two functions of vegan package inside a
for loop. Unfortunatly when I am trying to perform the anova(by=axis) to
test the individual axes the function don't recognize the species
data.frame. The same problem occurs whem I try to run forward selection.
The same problem occur when I try to perform the ordiR2step in the RDA
context.

I know that the problem are associated with the fact that those function
that I am trying to run needs the complete formula call like rda(esp~x+y+z)
but as I am running a loop I can not declare apriori the formula, so I am
using the compressed form like rda(esp~.,env). Is there any way to solve
this problem?

Thank you a lot,

-- 
Prof. Gilson Correia de Carvalho, M.Sc.
----------------------------------------------------
Pesquisador Associado
Laboratório de Ecologia Bentônica - LEB
Instituto de Biologia - UFBA
Universidade Federal da Bahia - UFBA
----------------------------------------------------
Professor Assistente
Departamento de Biointeração
Instituto de Ciências da Saúde - ICS
Universidade Federal da Bahia - UFBA
-----------------------------------------------------
Diretor Técnico
Holos Soluções Ambientais Ltda
-----------------------------------------------------
Skype: bio_gilson
GTalk: biogilson

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