Limits the number of sums that appear in the report.
- BY-variable
-
identifies a variable that appears in the BY statement in
the PROC PRINT step. If the value of the BY variable changes, or if the value
of any BY variable that precedes it in the BY statement changes, PROC PRINT
prints the sums of all variables listed in the SUM statement.
If you use a SUM statement, PROC PRINT subtotals only the SUM variables.
Otherwise, PROC PRINT subtotals all the numeric variables in the data set
except for the variables listed in the ID and BY statements.
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