https://communities.sas.com/t5/SAS-Programming/if-code-4-what-does-the-do/m-p/46971#M9697 "^" is the "NOT" infix operator. <BR /> <BR /> ^(code='4') is the same as NOT (code='4'). <BR /> <BR /> See the description of logical operators in the base SAS documentation.<BR /> <BR /> Doc Muhlbaier<BR /> Duke Wed, 17 Sep 2008 13:31:19 GMT Doc_Duke 2008-09-17T13:31:19Z https://communities.sas.com/t5/SAS-Programming/if-code-4-what-does-the-do/m-p/46970#M9696 while reading somebody else's code I see if ^( (format_code='4'). I'm not familiar with the ^ before the (. <BR /> <BR /> Does anybody know of a purpose for the ^? Wed, 17 Sep 2008 13:13:41 GMT https://communities.sas.com/t5/SAS-Programming/if-code-4-what-does-the-do/m-p/46970#M9696 JMarkW 2008-09-17T13:13:41Z https://communities.sas.com/t5/SAS-Programming/if-code-4-what-does-the-do/m-p/46971#M9697 "^" is the "NOT" infix operator. <BR /> <BR /> ^(code='4') is the same as NOT (code='4'). <BR /> <BR /> See the description of logical operators in the base SAS documentation.<BR /> <BR /> Doc Muhlbaier<BR /> Duke Wed, 17 Sep 2008 13:31:19 GMT https://communities.sas.com/t5/SAS-Programming/if-code-4-what-does-the-do/m-p/46971#M9697 Doc_Duke 2008-09-17T13:31:19Z