how to know it variable is macro or data set variable

[Ashwini]

Kindly explain me how to know a variable is macro or a data set variable.

Thanks,

Regards,

Ashwini

[LinusH]

Macro: can be used both in open code (outside data step/proc) or within a data step.

Data step variable obviously only available within a data step.

Macro variable assignment:

%let macrovar = Hello;

Macroa variable evaluation:

data good;

     if "&MacroVar" = 'Hello' then....

run;

by the nature of you questions, I think you need to take som basic SAS classes to understand the conepts of SAS.

Even if the purpose of these forums is to have the possibility get quesrtions answered, I think that basic questions that easily can be answered by looking in the documentation or to be taught in SAS classes should be avoided.

Br

Linus