[R] quasipoisson, glm.nb and AIC values

kjetil brinchmann halvorsen kjetil at entelnet.bo
Thu Mar 13 03:42:34 CET 2003

On 12 Mar 2003 at 19:50, Uwe Ligges wrote:


> I would vote against comparing different model classes using AIC.

Why? I thought one of the advantages with AIC is that it can be used 
to compare different model classes, although in practice it might be 
difficult because programs delete constants which shouldn't be 

Kjetil Halvorsen

> Instead, it's a better idea to think about which model class makes sense
> in a given context.
> Uwe Ligges
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