[R] Model selection

xy wtemptation at hotmail.co.uk
Wed Aug 3 18:29:40 CEST 2011


 Dear List, 
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) 

i will appreciate any help.thankss

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