Note that the answers provided by Maarten and Ricardo may provide different
results. You'll want to be careful about missing data. -egen, rowtotal-
treats missing values as 0, while the solution provided by Maarten does not.
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of P chrisman
Sent: Thursday, July 26, 2007 4:09 PM
To: [email protected]
Subject: st: summing variables
Dear List,
I need to find the total mg of a treatment received for each subject. I
have mg of treatment drug as variables mg_1 for the first dose received
through mg_108 for the last dose received. I would normally just create
a variable, e.g. gen totalmg= mg_1 + mg_2 to find the total, but since I
have 108 doses to sum, I am wondering if there is a more efficient way
to create the totalmg?
Thanks,
pc
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