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Beyond IF THEN ELSE: Techniques for Conditional …
1 Paper 326-2017 Beyond IF THEN else : Techniques for Conditional execution of SAS Code Joshua M. Horstman, Nested Loop Consulting, Indianapolis, IN ABSTRACT Nearly every SAS program includes logic that causes certain code to be executed only when specific conditions are met. This is commonly done using the syntax . In this paper , we will explore various ways to construct Conditional SAS logic, including some that may provide advantages over the IF statement. Topics will include the SELECT statement, the IFC and IFN functions, the CHOOSE and WHICH families of functions, as well as some more esoteric methods. We ll also make sure we understand the difference between a regular IF and the %IF macro statement. INTRODUCTION The Conditional execution of code is one of the most fundamental concepts in computer programming of all types. The ability to take different actions based on different inputs is essential to the completion of complex tasks.
1 Paper 326-2017 Beyond IF THEN ELSE: Techniques for Conditional Execution of SAS® Code Joshua M. Horstman, Nested Loop Consulting, Indianapolis, IN
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