[R] help

[Aimin Yan]

consider p as random effect with 5 levels, what is difference between these 
two models?

 > p5.random.p <- lmer(Y 
~p+(1|p),data=p5,family=binomial,control=list(usePQL=FALSE,msV=1))
 > p5.random.p1 <- lmer(Y 
~1+(1|p),data=p5,family=binomial,control=list(usePQL=FALSE,msV=1))

thanks,

Aimin Yan