I don't find it that weird. The longstanding point is that -xi:- will
overwrite its products without your leave on the grounds that they are
always deducible from the rest of your data and add no logical content.
Easy come, easy go.
Nick
[email protected]
Martin Weiss
On the occasion of this thread: Is it not weird that -c(changed)- does
not
reflect the fact that -xi- has created several new variables?
***************
use http://fmwww.bc.edu/ec-p/data/hayashi/griliches76.dta, replace
xi i.year
di c(changed)
drop smsa80
di c(changed)
***************
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