On Mon, 13 Nov 2006, Murray Jorgensen wrote:
> I am wondering if stepAIC in the MASS library may be used for model
> selection in an overdispersed Poisson situation. What I thought of doing
> was to get an estimate of the overdispersion parameter phi from fitting
> a model with all or most of the
I am wondering if stepAIC in the MASS library may be used for model
selection in an overdispersed Poisson situation. What I thought of doing
was to get an estimate of the overdispersion parameter phi from fitting
a model with all or most of the available predictors (we have a large
number of ob
