The Basics of SAS Functions
Definition
SAS functions are
pre-written routines that perform computations or system manipulations
on arguments and return a value. Functions can return either numeric
or character results. The value that is returned can be used in an
assignment statement or elsewhere in expressions.
Uses of SAS Functions
You can use SAS functions
in DATA step programming statements, in WHERE expressions, in macro
language statements, in the REPORT procedure, and in Structured Query
Language (SQL). They enable you to do the following:
-
calculate sample statistics
-
create SAS date values
-
convert U.S. ZIP codes to state postal codes
-
round values
-
generate random numbers
-
extract a portion of a character ...
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