Thanks! What OR procedure would you refer to? I had that thought, but didn't see any obvious candidates.   If it helps, this is something that I'd like to repeat many times for many lists (with replacement)   E.g.   For iteration 1:num_iterations       For lists 1:num_lists             Draw a random value from the list if count < threshold                   Count = count + random draw from the list                       ... View more

Thanks for the response!   Unfortunately, I think the dataset is pretty clean and tidy - I cleaned up any missing or other problem values before running. The counts from proc means match the counts from proc glimmix. I'm thinking the problem may be related to my math/lack of understanding of random models if anything. I updated my post to include the procedure that I used.   Thanks again!! ... View more

There is an example of modeling automobile insurance claims with Proc Hpgenselect here:   https://support.sas.com/rnd/app/stat/examples/hpgenselect/hpgenselect.htm ... View more