Hi, I have some difficulties to work with the function lmer from lme4. My responses are binary form and i want to use forward selection to my 12 covariates but i dont know how can I choose them based on deviance. Can someone pls give me a example so i can apply. For example my covariates are gestation,smoking ...and my response baby b1=lmer(baby~ (1|id), data, binomial) Thanks. -- View this message in context: http://r.789695.n4.nabble.com/lme4-help-pls-tp3715628p3715628.html Sent from the R help mailing list archive at Nabble.com.