The SPARSE Option
The SPARSE option in PROC FREQ is not properly named.
It is neither meager nor thin in its ability. It is a very
powerful option in the table statement. Simply stated, the
SPARSE option provides “all possible combinations of
levels of the variables in the table, even when some
combination levels do not occur in the data.”1
This is a
huge help when trying to zero-fill a data set. Although
current versions of SAS®
now contain the new
PRELOADFMT option for TABULATE and REPORT, for
some types of reports, this new option will not work.
See the article by Chris Moriak
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