Dear Statalisters,
just a quick question: When I
sysuse auto, clear
total mpg
the result is 1,576. An additional element in the -varlist- for -total-
changes the whole bargain:
total mpg rep78
results in 1,469 as the total for mpg. Why would I want this behavior?
Obviously, I can replicate the 1,469 with
qui egen float tot = total(mpg) if !missing(rep)
l tot in l
But if all I wanted was a matrix of totals for my vars, why would a missing
value in one of them invalidate the total for the others? Is there an easy
explanation that I am overlooking?
Best
Martin
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