I was having the same problem with a model, and I used your solution which made the model converge without error. But can you explain why it works? My variables were all binary, no values missing, and I'm not sure why I got the error in the first place. Thanks, Nadja @Ksharp wrote: You have too many levels for COUNTY. I think you should put it on SUBJECT. Make a variable : id_county=id||county; And make it as subject: repeated subject=id_county/ type=exch covb corrw; in the first place.
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