search for: male2000

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2011 Jul 17
1
create multiple variables loop
Hello all, I am trying to figure out how to construct several new variables without having to write a code for each one. Specifically, I want to calculate ratios for several variables. For instance, let's say I have: df male1990 male1995 male2000 male2005 female1990 female1995 female2000 female2005 10 11 15 17 15 14 17 20 23 22 25 28 25 22 27 30 32 33...