I understand that nlmixed is required for longitudinal zero inflated models. But given that I only have 2 time periods, will I be fine in genmod? Can I still put time in the repeated statement?
GENMOD cannot fit a zero-inflated model with repeated measures.
I realize that glimmix and nlmixed don't do it either. Is it because it is impossible or non-sensical or just because it is hard to difficult program?
You can fit zero-inflated models using PROC NLMIXED as shown in this note. You could add a RANDOM statement in that procedure.
Is it like the random residual in glimmix or a g-side random effect? or can it be used both ways?
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