what package can be used for a logit variable what is the r package for logits what package r uses fixed effect? what package do i use for a fixed effect can r do a fixed effect logit fixed effect logit r fixed effect logit recursion model what package is used for fixed effect logit in r what model do r use to estimate linear effect in regression what package does logit use what package can be used for logit what software can be used to test the variable logit what program to use to perform logger regression what is plm? r is good for variable effects what is plm package what is plm r what packages do i need for logit what is plm in r is there a package for a binary response model in r