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st: Need clarification regarding egen total option
From
Michael Stewart <[email protected]>
To
[email protected]
Subject
st: Need clarification regarding egen total option
Date
Wed, 13 Feb 2013 16:49:56 -0500
HI ,
I am trying to find the behavious of the egen totalfunction
Lets see the following three commands
.1) bysort fam:egen total1=total( age ) ==> this cmd sums
the age across observations per family
2). bysort fam:egen total2=total( age>=18 ) ==> this cmd COUNTS
the number of nonmissing values for age per family if > 18
3). bysort fam:egen total3=total( age) if age >=18 ==> this cmd
again sums the age across observations per family if >18
why does the total option sums the ages when the option is total( age
) where as gives the number of observations if total( age>=18 )
option is present
--
Thank you ,
Yours Sincerely,
Mike.
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