How do you create your own formats?

The FORMAT procedure creates formats that will later be associated with variables in a FORMAT statement.

Example:

PROC FORMAT;
            VALUE $GNRF "F"="FEMALE"
                                       "M"="MALE"
                                       ;
RUN;

PROC FREQ DATA=araw.demo06q1;
           TABLES gndr_cod/MISSING;
           FORMAT gndr_cod $gnrf.;
RUN;