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st: propensity score problem


From   Nick Cox <n.j.cox@durham.ac.uk>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   st: propensity score problem
Date   Fri, 16 Mar 2012 12:20:44 +0000

This is sent on behalf of Carlos, as below. He has already been reminded of the need to specify the sources of user-written programs cited. 

Nick 
n.j.cox@durham.ac.uk 

From: CARLOS MAGNO SANTOS CLEMENTE [mailto:carlosmagno_sc@ig.com.br] 

I try to determine the propensity score does the following error:

The treatment is id

          ID | Freq. Percent Cum.
------------ + ------------------------------**-----

      310,100 | 41 46.07 46.07
      313,810 | 48 53.93 100.00
------------ + ------------------------------**-----

       Total | 89 100.00



Estimation of the propensity score

outcome does not vary, remember:
                                   0 = negative outcome,
         All Other nonmissing values = positive outcome
r (2000);


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