Re: Missing values [was: RE: st: simple question]

[Joseph Coveney <jcoveney@bigplanet.com>]

Richard Williams wrote (excerpted): 

Is it also the case in SAS that if you say something like

regress y x if age > 40

you also get the missing cases on age included?  That is the main other 
thing I dislike about Stata's handling of MD, although it is easy enough to 
work around so long as you are careful.

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