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115029
2011 Nov 13
4
identify duplicate from more than one column
...i all,
I've searched everywhere to try to find out how to do this and have had no
luck. I am trying to construct identifiers for couples in a dataset.
Essentially, I want to identify couples using more than one column as
identifiers. Take for instance:
obs unit home z sex age
1 015029 18 1 1 053
2 015029 18 1 2 049
3 015029 01 1 1 038
4 015029 01 1 2 033
5 015029 02 1 1 036
6 015029 02 1 2 033
7 015029 03 1 1 023
8 015029 03 1 2 019
9 015029 04 1 2 045
10 015029 05 1 2 047
Where unit is the housing unit, home...