Hi,
I have a dataset(1) and want only the duplicates by MRN to output into another dataset(2)
so that I want to look at those MRN with multiple records very closely....
Thanks
Dataset1(HAVE)
MRN
101
102
103
104
Dataset2(WANT)
data want; set have; by mrn; if not (first.mrn and last.mrn); run;
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