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st: RE: -xi- and c(changed) [was: How to Export first-stage of IV (e.g. with ivreg2) to Latex (e.g. with outreg2) ?]


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: -xi- and c(changed) [was: How to Export first-stage of IV (e.g. with ivreg2) to Latex (e.g. with outreg2) ?]
Date   Tue, 18 Nov 2008 16:25:50 -0000

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 
n.j.cox@durham.ac.uk 

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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