An Introduction to SAS University Edition

Chapter 12: Performing Iterative Processing: Looping

Introduction

Demonstrating a DO Group

Describing a DO Loop

Using a DO Loop to Graph an Equation

DO Loops with Character Values

Leaving a Loop Based on Conditions (DO WHILE and DO UNTIL Statements)

DO WHILE

Combining an Iterative Loop with a WHILE Condition

Do UNTIL

Demonstrating That a DO UNTIL Loop Executes at Least Once

Combining an Iterative Loop with an UNTIL Condition

LEAVE and CONTINUE Statements

Conclusion

Problems

Introduction

Many programs use a process called looping. You can execute a series of statements a fixed number of times or you can set a condition that, when satisfied, will cause the iteration to start or stop and the rest of the program to continue. SAS iterative statements ...