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st: Question about a loop

From   Cameron Hooper <[email protected]>
To   [email protected]
Subject   st: Question about a loop
Date   Tue, 5 Jul 2005 16:58:59 -0400

Say I have 10 variables named: num1, num2, ..., num10. I want to loop over these variables and create 10 new ones named: op1, op2, ..., op10. The following works:

local x 1
foreach var of varlist num* {
gen op`i' = sum(ret) if inlist(num`i',-1,0,1)
local i = `i' + 1

I was originally thinking of accessing each of the num* variable's name, extracting the last digit and appending this to the stub 'op' and thus create a new variable. But I don't know to access a variables name. Can such a thing be done? Can anyone suggest a better way of executing this code?



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