topic Re: is this macro variable local or global? in SAS Programming

is this macro variable local or global?

ZRick — Sat, 14 Apr 2012 16:42:53 GMT

is this class macro var local or global? why?

data _null_;

set sasuser.courses;

%let class="course_title";

run;

Re: is this macro variable local or global?

Tom — Sat, 14 Apr 2012 18:32:12 GMT

If that is your whole program it will be created as GLOBAL. Local macro variables only exist while a macro is running.

Note that placing the %LET inside of the code for that data step is confusing for humans. SAS will assign the macro variable while it is compiling the data step. So it would be less confusing to move the %LET statement before the data statement.

Re: is this macro variable local or global?

Patrick — Sat, 14 Apr 2012 23:44:26 GMT

You can always query sashelp.vmacro if you want to check.

%let MvarDefOutside=test;

%macro test;
%local LocalMvar;
%global GlobalMvar;

%let MvarDefInside=test;

   proc print data=sashelp.vmacro;
      where scope ne "AUTOMATIC";
   run;

%mend;
%test

Re: is this macro variable local or global?

Ksharp — Tue, 17 Apr 2012 05:53:51 GMT

Or use

%put _user_; Check out. OR %symlocal %symglobl .

%macro a;
%let class="course_title";
data _null_;
set sashelp.cars;
run;
%put %symlocal(class) %symglobl(class) ;
%mend a;

%a

Ksharp