SAS 9.4 Language Reference, 6th Edition

SOURCE2

controls whether SAS writes source statements included by %INCLUDE to the

SAS log.

Debugging Logic Errors in the DATA Step

To debug logic errors in a DATA step, you can use the DATA step debugger. This tool

enables you to issue commands to execute DATA step statements one by one and then

pause to display the resulting variables' values in a window. By observing the results that

are displayed, you can determine where the logic error lies. Because the debugger is

interactive, you can repeat the process of issuing commands and observing results as

many times as needed in a single debugging session. To invoke the debugger, add the

DEBUG option to the DATA statement and execute the program. For detailed

information about how to use the DATA step debugger, see “Using the DATA Step

Debugger” in Base SAS Utilities: Reference.

154 Chapter 8 • Error Processing and Debugging