Ahh, so I was looking at the wrong spot..
many thanks!
On Jun 5, 2008, at 2:34 PM, Richard Goldstein wrote:
use egen with the rowtotal option; e.g.
egen varD=rowtotal(varA varB varC)
Rich
Andrea Bennett wrote:
Hi,
I guess this is an easy task for somebody more experienced. I have
3 columns (varA, varB, varC) containing dummy variables (0, 1,
missing values "."). I would like to generate "varD" the sum of
each row, e.g. if varA==1 varB==0 varC==1 I should have varD==2.
This works clearly fine when there are no missing values (varD=
varA + varB + varC). But is there an easy way to let Stata read a
missing value as "0" so that varA==1 varB==. varC==1 would result
in varD==2 (without actually replacing the missing values with
"0")? I am trying to get it to work with -missing()- but so far
have not succeeded.
Many thanks for your consideration,
Andrea
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