I've got three variables: v12 v3 v6 that are categorical and each of them is
classified in five categories.
I'd like to apply a multinomial logistic regression to predict the value of
v12 given a value of v3 and v6.
mlogit v12 v3 v6
prtab v3 v6
I really can't understand the use of prtab. There are some cell that are
blank but prtab gives a probability.
Does someone know something more about prtab and if mlogit is correct?