Suppose that the ID variable is named ID and that you have named the Output Dataset Name as matches and the Match_ID Variable as match_id. If you have a large number of variables in the data file that are not used by the PSM analysis, save a copy of the data that only includes those variables that are used in the PSM and perform the PSM with that data set. PSM run with data set holding only required variables Here are some options to consider for improving the efficiency of an analysis in such situations.Ī. If the data file is wide (i.e., many variables or with many long string variables), this can slow down performance considerably. There is no file size limit for PSM but the procedure can be very memory intensive and large jobs may take a long time to complete.
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