https://communities.sas.com/t5/ODS-and-Base-Reporting/Can-any-one-explain-this-line-of-code-if-KEEP-AND-DROP/m-p/5576#M2247 Assuming that this code is in a macro and that DROP^= is actually &amp;DROP^=<BR /> <BR /> The line is checking to set if the macro variables (or macro symbols) KEEP and DROP are not equal to blank. If they are both nonblank, the code after %then gets executed/processed. Otherwise, it doesn't. Mon, 19 Nov 2007 14:47:51 GMT advoss 2007-11-19T14:47:51Z https://communities.sas.com/t5/ODS-and-Base-Reporting/Can-any-one-explain-this-line-of-code-if-KEEP-AND-DROP/m-p/5575#M2246 Can any one explain this line of code<BR /> %IF &amp;KEEP^= AND DROP^=<BR /> Thanks in advance.<BR /> <BR /> Regards,<BR /> Rupa. Mon, 19 Nov 2007 07:50:08 GMT https://communities.sas.com/t5/ODS-and-Base-Reporting/Can-any-one-explain-this-line-of-code-if-KEEP-AND-DROP/m-p/5575#M2246 deleted_user 2007-11-19T07:50:08Z https://communities.sas.com/t5/ODS-and-Base-Reporting/Can-any-one-explain-this-line-of-code-if-KEEP-AND-DROP/m-p/5576#M2247 Assuming that this code is in a macro and that DROP^= is actually &amp;DROP^=<BR /> <BR /> The line is checking to set if the macro variables (or macro symbols) KEEP and DROP are not equal to blank. If they are both nonblank, the code after %then gets executed/processed. Otherwise, it doesn't. Mon, 19 Nov 2007 14:47:51 GMT https://communities.sas.com/t5/ODS-and-Base-Reporting/Can-any-one-explain-this-line-of-code-if-KEEP-AND-DROP/m-p/5576#M2247 advoss 2007-11-19T14:47:51Z