[R] glmer (lme4), glmmPQL (MASS) and xtmepoisson (Stata)

Dear R users, I'm trying to specify a generalized linear mixed model in R, basically a Poisson model to describe monthly series of counts in different regions. My aim is to fit subject-specific curves, modelling a non-linear trend for each region through random effects for linear splines

Re: [R] glmer (lme4), glmmPQL (MASS) and xtmepoisson (Stata)

Antonio.Gasparrini at lshtm.ac.uk writes: I'm trying to specify a generalized linear mixed model in R, basically a Poisson model to describe monthly series of counts in different regions. My aim is to fit subject-specific curves, modelling a non-linear trend for each region through random