[R-sig-ME] glmer and poisson distributions and P values

Renwick, A. R. a.renwick at abdn.ac.uk
Mon Mar 16 16:27:31 CET 2009

Dear Emma
There has been many queries on this foum regarding false convergence but before diagnosing your problem if may be necessary for you to send some more information on your model, i.e what the model is, how may data points you have for each variable etc.


-----Original Message-----
From: r-sig-mixed-models-bounces at r-project.org [mailto:r-sig-mixed-models-bounces at r-project.org] On Behalf Of Emma Stone
Sent: 16 March 2009 15:21
To: r-sig-mixed-models at r-project.org
Subject: [R-sig-ME] glmer and poisson distributions and P values

Dear all,

I am trying to run a glmer model with count data,with one random factor.
When I run it with more than one predictor all is well, but when there is only one predictor in the model I get this warning message, can anyone explain this at all?

Warning message: In mer_finalize(ans) : false convergence (8)

Also, for other models in the canidate set I am looking at interactions between predictors and I want to get the P values for these interactions, any ideas how I can do this from a glmer model?




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