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st: how does regress picks which vars to drop if N<X?


From   "Tom Boonen" <tom.boonen.maiden@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: how does regress picks which vars to drop if N<X?
Date   Mon, 12 Mar 2007 17:26:29 -0400

Hi List,

if i run regress with more covariates than observations, some
covariates will be dropped. How does Stata decide which variables are
dropped. I could not infer this from the source code.

Any ideas? Thanks!

Tom
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