Dear R users,

I have this 2 models that fit to my data:


M3varI <- update (M3, weights=varIdent(form= ~ 1|SITE))

M3AR1<-update(M3,correlation=corAR1())

The first one, updates my M3 so that I can account for the variance  
structure of random erros.
The second one, updates my M3 so that I can account for the  
correlation structure of random errors.


How can I put them toghether in one final model?

I have tryed it using gls but I could not do it.

Could you please help me o this?

Bets regards,

Sara Maltez Mouro

Centro de Ecologia Funcional
Departamento de Botânica
Universidade de Coimbra

sara@gmesintra.com
www.uc.pt/ecology/saramaltezmouro


	[[alternative HTML version deleted]]

