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st: displaying summation of a variable
Stata 8.2 Window XP Pro SP2,
i have a variable 'total', which represents population (no. of persons) per
observation. what i wanted is quite simple - simply to sum(total) to give
the overall total no. of person in the dataset. so i did egen
sumpopn=sum(total), which created a variable sumpopn filled with a constant
equalling the overall sum, then took a peek at it using display sumpopn. it
does the job... but is there a shorter way of doing this without -egen- ing
a new variable (i know i can always -drop sumpopn- later)?
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