The
Filter to Include Observations
field is an optional parameter that
enables you to subset the
Primary Input SAS Data Set
. Only those
observations
that meet all of the conditions specified in the field are included in the analysis.
For example, to filter only diseased individuals from a data set containing a mixed
population
of diseased (sick) and healthy (healthy) individuals (as indicated in a column named
DiseaseStatus
), you could use the following simple WHERE expression:
Note:
the word
where
has already been entered for you.