Subsetting Data
As you read your data, you can subset
it by processing only those observations that meet a specified
condition. To do this, you can use a subsetting IF statement in any
DATA step.
Using a Subsetting IF Statement
The subsetting IF statement causes the DATA step to continue
processing only those observations that meet the condition of the
expression specified in the IF statement. The resulting SAS data
set or data sets contain a subset of the original external file or
SAS data set.
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General form, subsetting IF
statement:
IF expression;
where expression is any
valid SAS expression.
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