The freely available R package glmmADMB can do Adaptive Gaussian Quadrature for this type of model, since it is built using AD Model Builder's random effects module which incorporates this feature. There is now a beta version of the software for people using R on the Mac intel platform. http://otter-rsch.com/admbre/examples/glmmadmb/glmmADMB.html Cheers, Dave -- David A. Fournier P.O. Box 2040, Sidney, B.C. V8l 3S3 Canada Phone/FAX 250-655-3364 http://otter-rsch.com
Possibly Parallel Threads
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- glmmADMB: Mixed models for overdispersed and zero-inflated count data in R
- Mixed model for negative binomial distribution (glmm.ADMB)
- conservative robust estimation in (nonlinear) mixed models
- Nonlinear statistical modeling -- a comparison of R and AD Model Builder