能用catmod做multiple imputation 吗？

shiyiming

我用PROC MI作了multiple imputation，然后想fit CATMOD model, 然后想用prox mianalyze 统一起来。为什么作不了CATMOD的model呢？

code是这样的：
proc catmod data=a1cj.w33 noprint;/*with imput*/
direct  scrptage  scrpted2  ;
response logits;
by _imputation_;
model r1frail=g21 g22 g23 scrptage racebin scrpted2 / covb;

ods output PredictedValues=predicted  CovB=gmcovb;
run;


LOG给出的信息是：
NOTE: Interactivity disabled with BY processing.
NOTE: The default estimation method for this model is maximum-likelihood.
WARNING: There are no valid requests for displayed output or an output data set, so processing will
         terminate.
NOTE: The above message was for the following by-group:
      Imputation Number=1
WARNING: There are no valid requests for displayed output or an output data set, so processing will
         terminate.
NOTE: The above message was for the following by-group:
      Imputation Number=2
WARNING: There are no valid requests for displayed output or an output data set, so processing will
         terminate.
NOTE: The above message was for the following by-group:
      Imputation Number=3
WARNING: There are no valid requests for displayed output or an output data set, so processing will
         terminate.
NOTE: The above message was for the following by-group:
      Imputation Number=4
WARNING: There are no valid requests for displayed output or an output data set, so processing will
         terminate.
NOTE: The above message was for the following by-group:
      Imputation Number=5
NOTE: There were 3675 observations read from the data set A1CJ.W33.
NOTE: PROCEDURE CATMOD used (Total process time):
      real time           0.03 seconds
      cpu time            0.03 seconds

WARNING: Output 'CovB' was not created.  Make sure that the output object name, label, or path is
         spelled correctly.  Also, verify that the appropriate procedure options are used to produce
         the requested output object.  For example, verify that the NOPRINT option is not used.
WARNING: Output 'PredictedValues' was not created.  Make sure that the output object name, label, or
         path is spelled correctly.  Also, verify that the appropriate procedure options are used to
         produce the requested output object.  For example, verify that the NOPRINT option is not
         used.


怎么回事？请高手指教！