far in this chapter, you've learned to use IF-THEN statements to
execute assignment statements conditionally. But you can specify
any executable SAS statement in an IF-THEN statement. For example,
you can use an IF-THEN statement with a DELETE statement to
determine which observations to omit as you read data.
The IF-THEN statement executes a
SAS statement when the condition in the IF clause is true.
The DELETE statement stops the
processing of the current observation.
General form, DELETE statement:
conditionally execute a DELETE statement, you submit a statement in
the following general form:
IF expression THEN DELETE;