data demo; infile datalines; input record x y z a; cards; 1 34 54 65 76 2 34 54 65 76 3 34 54 65 76 4 34 54 65 76 5 98 45 09 56 6 12 43 98 87 7 12 43 98 87 8 76 93 68 34 ;
From above dataset i want to separate duplicate records like
1st,2nd,3rd,4th,6th and 7th are duplicates.
How can i get that?
Thnaks in advance...
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