[R] panel data maximum likelihood function

Hi, I found some problems dealing with panel data. However, it seems the problem is maximum likelihood function. I cannot find a function to compute maximum likelihood estimator for panel data as well as to test data with likelihood ratio test. May anyone knows something about that? Thanks,

[R] Post hoc in repeated measures anova

Hi, I found a problem dealing with repeated measures anova post hoc. I'm desperate in finding how to use it in R. The problem is that an Error term in aov() creates class of aovlist and that's why I cannot use TukeyHSD() which needs aov class. I really appreciate your help. Migle