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re: st: Propensity Score Matching command in Stata 13


From   "Weichle, Thomas" <Thomas.Weichle@va.gov>
To   <statalist@hsphsun2.harvard.edu>
Subject   re: st: Propensity Score Matching command in Stata 13
Date   Wed, 26 Jun 2013 11:50:07 -0500

I was not able to find anything in the Stata 13 manual for the new
-teffects psmatch- command regarding matching with or without
replacement.  I find it to be an oversight to not allow matching without
replacement.

It looks as though the new -teffects nnmatch- command for
nearest-neighbor matching uses the Mahalanobis distance.  However, I
didn't see this metric allowed in the -teffects psmatch- command as you
stated.

Tom Weichle
Math Statistician
VA Information Resource Center (VIReC)
Edward Hines Jr. VA Hospital, Bldg 18, 202E
708-202-8387 ext. 24261
Thomas.Weichle@va.gov


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