I follow the steps provided in the following website http://support.sas.com/documentation/cdl/en/basess/58133/HTML/default/viewer.htm#a001349233.htm.
proc sort data=Gta2 Out=Gta3;
by Agmtcd;
run;
data sub_Gta3;
set Gta3;
by Agmtcd;
run;
data sub_Gta3;
set Gta3;
FirstAgmtcd=first.Agmtcd;
LastAgmtcd=last.Agmtcd;
run;
However, SAS says the variables "first.Agmtcd" and "last.Agmtcd" are not initialized. The format of Agmtcd is $10. Does anybody know what's wrong with my code?
Thanks a lot!
You have 3 datasteps when you should only have 2. The first. and last. variables are only available when a by statement is present within the SAME datastep. Thus, try it with:
proc sort data=Gta2 Out=Gta3;
by Agmtcd;
run;
data sub_Gta3;
set Gta3;
by Agmtcd;FirstAgmtcd=first.Agmtcd;
LastAgmtcd=last.Agmtcd;
run;
You have 3 datasteps when you should only have 2. The first. and last. variables are only available when a by statement is present within the SAME datastep. Thus, try it with:
proc sort data=Gta2 Out=Gta3;
by Agmtcd;
run;
data sub_Gta3;
set Gta3;
by Agmtcd;FirstAgmtcd=first.Agmtcd;
LastAgmtcd=last.Agmtcd;
run;
It works. Thanks a lot!!!
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