topic macro variable in SAS Programming

macro variable

Ashwini — Thu, 07 Jun 2012 03:32:51 GMT

If we create a macro variable in side a data step .Is it work any other data step or work like global or local variable.

Thanks and Regards,

Ashwini

Re: macro variable

Ksharp — Thu, 07 Jun 2012 04:30:28 GMT

If these macro variable are maked at Open code, they are all global macro variables ,you can use them at anywhere . But if they are maked inside a macro and you don't define them with %global, then they only can be used in this macro(i.e. local macro).

Ksharp

Re: macro variable

chang_y_chung_hotmail_com — Thu, 07 Jun 2012 19:20:53 GMT

You can create both local and global variables by running a data step. If you are using CALL SYMPUT, then there are some complicated exceptions. I tend to use CALL SYMPUTX with the third argument, to show my intention a little bit more clearly:

%macro mymacro();
    %local local;
    data _null_;
      call symputx('local', 'local', 'local');
      call symputx('global', 'global', 'global');
    run;
    %put _user_;
%mend mymacro;
%mymacro()
%*-- on log
MYMACRO LOCAL local
GLOBAL GLOBAL global
--*;