CODEWITHSUNDEEP
sas
user124249
user124249

Reputation: 79

Setting a macro variable with if then statement in SAS/WPS

I'm trying to set a macro variable using an if then statement using SAS programming language but using WPS (World Programming System), which is basically a SAS clone, but for some reason it's not working.

%if 1=1 %then %do;
    data test;
    a=111;
    run;

    %let a=2;
%end;

%put &a.;

I get this message after the put statement:

WARNING: Macro variable "&a" was not resolved

However, the test dataset was successfully created. Is this just a WPS specific problem, or does the same error occur in SAS as well?

Update: I tried running the above code within a macro, but I still get the same error message:

%macro test_macro();
%if 1=1 %then %do;
    data test;
    a=111;
    run;

    %let a=2;
%end;
%mend;

%test_macro();
%put &a.;

Upvotes: 0

Views: 241

Answers (1)

Tom
Tom

Reputation: 51581

If you don't tell the macro processor that you want A to be a global macro symbol it will be made in the local macro symbol table.

Either define A before calling the macro:

%let a=before macro call;
%test_macro();
%put &a.;

Or add a %GLOBAL statement inside the macro definition.

%macro test_macro();
  %global a;
  ...

Upvotes: 2

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