The SIMILARITY procedure can create the OUT=, OUTSUM=, OUTMEASURE=, OUTSEQUENCE=, and OUTPATH= data sets. In general, these data sets contain the variables listed in the BY statement. The ID statement time ID variable is also included in the data sets when the time dimension is important. If an analysis step related to an output data step fails, then the values of this step are not recorded or are set to missing in the related output data set, and appropriate error and/or warning messages are recorded in the SAS log.