[R-sig-ME] Model selection for mgcv::gamm (using PQL)

[David Duffy]

On Tue, 6 Aug 2013, Cornelia Oedekoven wrote:

> The function gamm4::gamm4 uses lme4 instead of nlme (and avoids PQL). It does,
> however, not allow for specifying quasi-families and the data is overdispersed.

I presume you could fit individual-level random effects in gamm4 (a la 
Scottish lip cancer etc).

The MuMIn package seems to calculate AIC etc for gamm, so perhaps the 
author of that package would know the relevant literature?


| David Duffy (MBBS PhD)                                         ,-_|\
| email: davidD at qimr.edu.au  ph: INT+61+7+3362-0217 fax: -0101  /     *
| Epidemiology Unit, Queensland Institute of Medical Research   \_,-._/
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