topic Re: Do loop in SAS Programming

Do loop

Ronein — Thu, 23 Aug 2018 07:12:27 GMT

Hello

I want to ask about do loop.

For example:

%do i=1 %to 12;

How can I run the Do loop from 12 to 1 and not 1 to 12?

thanks

Joein

hashman — Thu, 23 Aug 2018 07:19:07 GMT

%do i = 12 %to 1 %by -1 ;
  /* .... */
%end ;

Paul D.

Kurt_Bremser — Thu, 23 Aug 2018 07:20:57 GMT

Use by -1:

data _null_;
do i = 12 to 1 by -1;
  put i=;
end;
run;

%macro test;
%do i = 12 %to 1 %by -1;
  %put i=&i;
%end;
%mend;
%test