Removing uninitialized variable note from log file

[bharath86]

Hi 

Below is the code and a note from the log file while executing this code.

Why does SAS think first.usubjid is a varible by itself. 

Please advise how to get rid of this note from the log file or an alternate to this code. 

230        data mh_fin;
231        set mh mh_test4;
232        
233        	if first.usubjid then MHSEQ=1;
234        	else MHSEQ+1;
235        
236        run;


NOTE: Variable first.usubjid is uninitialized.

Thank you

[Amir · Accepted solution]

Hi @bharath86,

Have you tried using a by statement with the variable usubjid after the set statement?

Kind regards,

Amir.

[bharath86]

Hey, 

Thanks for raising that by statement.

I actually revised the code and changed the variable.

data mh_fin;
set mh mh_test4;
by studyid;
	if first.studyid then MHSEQ=1;
	else MHSEQ+1;

run;

Thank you that helps.