search for: sex3

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2003 Dec 17
5
beginner programming question
...for which I have found a solution, but I feel it is a rather poor one. I wonder if there's some other (more clever) solution, using (maybe?) vectorization or subscripting. A toy example would be: rel1 rel2 rel3 age0 age1 age2 age3 sex0 sex1 sex2 sex3 1 3 NA 25 23 2 NA 1 2 1 NA 4 1 3 35 67 34 10 2 2 1 2 1 4 4 39 40 59 60 1 2...