10-08-2015 01:17 PM
I assume you are talking about the data set created by the OUT= option on the PROC MI statement.
That data set does not contain a copy of the original data. It contains N copies of the imputed data.
If you need the original data, you could prepend it to the imputed data. Maybe set _imputation_=0 to identify it, like this:
data Original; _imputation_ = 0; set Original; run; data All; set Original OutMI; run;