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st: How do I create a loop that calculates new variables by performing the simple mathematical function of subtracting one varlist on another varlist?
From
"Saporito, Salvatore J" <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: How do I create a loop that calculates new variables by performing the simple mathematical function of subtracting one varlist on another varlist?
Date
Mon, 9 Jan 2012 02:47:44 +0000
I am trying to subtract one sequential list of variables (e.g., a1 to a73) from another sequential list (e.g., b1 to b73) using a loop statement such as the "foreach..." I am trying to avoid repeating the same, simple function (in this case 73 times).
Specifically, I want a loop that repeats this:
gen h7a001=h7r001-h7t001
gen h7a002=h7r001-h7t002
to
gen h7a073=h7r003-h7t073
Simple question but I am trying to learn Stata so that I can use the power of its programming capabilities. This particular challenge eludes me.
Thanks,
Sal
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