CCDM Procedure

You can use the BY statement in the CCDM procedure to process the input data table in groups of observations defined by the BY variables.

If you specify the BY statement, then unlike procedures that do not use a CAS server, PROC CCDM does not need the input data table to be sorted in the order of the BY variables. As a consequence, the NOTSORTED and DESCENDING options have no effect, and PROC CCDM ignores them.