It means the solution found is possibly not the solution, but the algorithm couldn't continue further.
It could also mean you have too many model terms in your model, and removing some may allow the algorithm to find the solution.
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@ankur_1989 wrote:
proc surveyselect data= raw_data method=srs rep=2 samprate=0.7 seed=1234 out=one20 ; id _all_ ; run ;
Please specify how to use this.
I would ask why you have the rep=2 in your code. It has a strong likelihood of duplicating some records in the selected sample which will not do what you expect in terms of training/validation sets.
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