Beginning Tutorials Paper 57 Introduction to SAS …

Paper 57 Introduction to SAS FunctionsNeil Howard, Independent Consultant, Charlottesville, VAAbstractA FUNCTION returns a value from a computation orsystem manipulation that requires zero or morearguments. And, like most programming languages, theSAS System provides an extensive library of built-in functions . SAS has more than 190 functions for a varietyof programming tasks. This tutorial will cover the syntaxfor invoking functions , an overview of the functionsavailable, examples of commonly used functions , selectedcharacter handling and numeric functions , and sometricks and applications of functions that will surprise Down a FUNCTION - SyntaxGiven the above definition of a function, the syntax andcomponents should be examined. A function recognizedin a SAS statement by the use of a function name,followed immediately by function argument(s), separatedby commas, and enclosed in a function requiring two arguments the syntax is asfollows:FUNCTIONNAME(argument-1, argument-2) where the arguments are: constants variables expressions other functionsSeveral functions take no arguments, in which case a nullset of parentheses is required.

Paper 57 Introduction to SAS Functions Neil Howard, Independent Consultant, Charlottesville, VA Abstract A FUNCTION returns a value from a computation or

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