[R] Help with glmmML package
gb at stat.umu.se
Wed Sep 17 11:20:43 CEST 2003
On Tue, 16 Sep 2003, Farouk Nathoo wrote:
> Dear R users,
> I have been using the package glmmML to fit a logistic-normal mixed model
> to clustered binary data. Along with parameter estimates I would also like
> to obtain estimates of the random effects. I have noticed that a fitted
> "glmmML" object contains a component called "frail", a vector, which looks
> to be an estimate of the random effects. Can anyone confirm this?
> And if
> so, how are these estimates obtained from the fitted model?
They are the conditional expectations of the random effects, given "data",
calculated at the parameter values given by the fitted model.
> Are they the empirical Bayes estimates?
I guess one could call them that.
I apologize for the bad documentation of glmmML. Hopefully I will be able
to deliver improvements during this fall. Until then, read the source
Göran Broström tel: +46 90 786 5223
Department of Statistics fax: +46 90 786 6614
Umeå University http://www.stat.umu.se/egna/gb/
SE-90187 Umeå, Sweden e-mail: gb at stat.umu.se
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