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st: total() returns zero if all missing in long-format data
From
Shehzad Ali <[email protected]>
To
Stata List <[email protected]>
Subject
st: total() returns zero if all missing in long-format data
Date
Mon, 29 Oct 2012 13:19:52 +0000 (GMT)
Hi listers,
In long-format data structure (multiple obs per id), the total() function returns zero if all values of the variable for a particular id are missing. Can anyone suggest the best way to ensure that the total returns missing when all values are missing for a particular id?
bysort id: egen total = total(var1)
Many thanks
Shehzad
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