I'm using proc glimmix to analyze calves born and calves weaned but it gives me the error: "Data did not converge" when I have a nested variable in the model statement for calves born. The data is almost exactly the same for calves born and calves weaned, both are 0s and 1s with only a slight difference in the total amount of each between the variables, but for some reason proc glimmix will only converge my data for calves weaned with a nested variable. The models are exactly the same except for the dependent variable. They are: birthed_calfnum= f2_animal_breed cow_age(f2_animal_birth_year) / dist=binomial link=logit; random f2_animal_id; and weaned_calfnum= f2_animal_breed cow_age(f2_animal_birth_year) / dist=binomial link=logit; random f2_animal_id; I've tried just running the model with the nested effect and upping the number of iterations but I still get the same error message. Does anyone have any idea what's going on and how to fix it? Thank you!
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