Do loop

[Ronein]

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]

@Ronein:

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

Paul D.

[Kurt_Bremser]

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

This is covered in the documentation of the iterative do statement: https://documentation.sas.com/?cdcId=pgmsascdc&cdcVersion=9.4_3.3&docsetId=lestmtsref&docsetTarget=p...