The HPFMM Procedure

The ID statement lists one or more variables from the input data set that are transferred to output data sets created by SAS high-performance analytical procedures, provided that the output data set produces one or more records per input observation.

For more information about the common ID statement in SAS high-performance analytical procedures, see the section ID Statement in SAS/STAT 14.1 User's Guide: High-Performance Procedures.