SAS 9.2 Language Reference Concepts
Original Publication Date: 2009-Dec-31
Included in the Prior Art Database: 2015-Sep-19
SAS Institute Inc.
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SAS® 9.2 Language Reference
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The correct bibliographic citation for this manual is as follows: SAS Institute Inc. 2009. SAS 9.2 ® Language Reference: Concepts. Cary, NC: SAS Institute Inc.
SAS 9.2® Language Reference: Concepts
Copyright © 2009, SAS Institute Inc., Cary, NC, USA
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4 Essential Concepts of Base SAS Software 3
What Is SAS? 3
Overview of Base SAS Software 4
Components of the SAS Language 4
Ways to Run Your SAS Session 7
Customizing Your SAS Session 9
Conceptual Information about Base SAS Software 10
4 SAS Processing 13
Definition of SAS Processing 13
Types of Input to a SAS Program 14 The DATA Step 15
The PROC Step 16
4 Rules for Words and Names in the SAS Language 17 Words in the SAS Language 17
Names in the SAS Language 20
4 SAS Variables 25
Definition of SAS Variables 26
SAS Variable Attributes 26
Ways to Create Variables 28
Variable Type Conversions 32
Aligning Variable Values 32
Automatic Variables 33
SAS Variable Lists 34
Dropping, Keeping, and Renaming Variables 36 Numeric Precision in SAS Software 38
4 Missing Values 49
Definition of Missing Values 49
Creating Special Missing Values 50
Order of Missing Values 51
When Variable Values Are Automatically Set to Missing by SAS 52 When Missing Values Are Generated by SAS 53
Working with Missing Values 55
4 Expressions 57
Definitions for SAS Expressions 58 Examples of...