[R] GAM quasipoisson in MuMIn

Gavin Simpson gavin.simpson at ucl.ac.uk
Fri Feb 4 13:47:20 CET 2011


On Fri, 2011-02-04 at 12:31 +0000, Karen Moore wrote:
> Hi,
> 
<snip />
> My formula is
> 
> GAM<-gam(Species richness (count) ~ Categorical +  Continous + Continous + *
> s*(Continous ) + Continous : Continous + Continous : Continous,
> family=quasipoisson, data =)

Ok, I'm reasonably certain that that is *not* your gam() call. Why not
post the *actual* code you would enter for your GAM model?

dd <- dredge(GAM)

should evaluate all possible models from the global model you specified.
The example you quote is for a global model with both smooth and linear
terms for the same variables, hence in dredge() they need to select
models that include only the smooth for a particular variable or the
linear term for that variable, but not both.

By the looks of it, you don't have this problem.

G

> 
> Thanks for any advice on script
> 
> 
> Karen
> 
> 	[[alternative HTML version deleted]]
> 
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