Dear all, How can I create an enumeration variable by groups?
I have:
gender score 1 48 1 45 2 50 2 42 1 41 2 51 1 52 1 43 2 52
and Y would like to get:
gender score index
1 48 1
1 45 2
1 41 3
1 52 4
1 43 5
2 50 1
2 42 2
2 51 3
2 52 4
best regards
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