Parameters | Expression Parameters | Filter to Include Rows

Filter to Include Rows
The Filter to Include Rows field is an optional parameter that enables you to filter the rows in the data set. Only those rows that meet all of the conditions specified 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:
WHERE DiseaseStatus = ‘sick’
Note: the word where has already been entered for you.
For more information about using filter fields, see The SAS WHERE Expression .