[R-sig-ME] predicted mean from GLMM lower than mean from GAM

benton benton at stat.berkeley.edu
Tue Jul 17 21:01:04 CEST 2012


I fit a Poisson GLMM with only the intercept and two random effects, and 
the predicted mean was 1.14. When I fit a generalized additive model 
(GAM) with only the intercept, the predicted mean was 1.6. Does anyone 
know why this is happening? I'm looking for a theoretical response, as 
I've checked my code and there are no errors.


Katie Benton

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