Learning SAS by Example: A Programmer's Guide

vi Contents Chapter 8 Performing Iterative Pr ocessing: Looping 117 8.1 Introduction 117 8.2 DO Groups 118 8.3 The Sum Statement 120 8.4 The Iterative DO Loop 125 8.5 Other Forms of an Iterative DO Loop 129 8.6 DO WHILE and DO UNTIL ...

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