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st: mim: reg command
I notice that when you use the mim command (available from SSC) you 
don't get an R^2 statistic, e.g.
. mim: reg total black white worker exceed ltplan
Multiple-imputation estimates (regress)                  Imputations =       5
Linear regression                                        Minimum obs =    4519
                                                         Minimum dof =  1000.0
------------------------------------------------------------------------------
       total |     Coef.  Std. Err.     t    P>|t|    [95% Conf. Int.]   MI.df
-------------+----------------------------------------------------------------
       black |  -2342.99   29996.3   -0.08   0.938   -61205.9  56519.9  1000.0
       white |   36197.6   22577.7    1.60   0.109   -8107.44  80502.6  1000.0
      worker |   31077.2   17928.7    1.73   0.083   -4105.04  66259.4  1000.0
      exceed |   34791.1   19359.1    1.80   0.073   -3198.07  72780.3  1000.0
      ltplan |   36141.7   16114.5    2.24   0.025    4519.51  67763.8  1000.0
       _cons |  -43537.8   27718.2   -1.57   0.117   -97930.3  10854.7  1000.0
------------------------------------------------------------------------------
Would it be legit to average the R^2 from the separate imputations, 
or to otherwise compute it?  If not, is there a handy reference 
somewhere explaining why R^2 is not a legit statistic when doing 
multiple imputations?  I just know that some reviewer is going to ask 
where the R^2 statistic is!
-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
HOME:   (574)289-5227
EMAIL:  [email protected]
WWW:    http://www.nd.edu/~rwilliam
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