topic Re: Skip a section of code in SAS Programming

Skip a section of code

stat11 — Thu, 04 Oct 2012 19:16:01 GMT

Hi,

Is it possible to conditionally skip a section of code?

For example, I have a global macro called VolAdj, which can hold the values Y or N. My code looks like:

SAS DATA Step....

%macro Zero;

a few simple calculations;

%mend;

%Zero;

SAS DATA Step...

I'd like to write something like:

if &VolAdj = "Y" then run the macro Zero and the data steps after it;

else if &VolAdj = "N" then skip the macro Zero and run the data steps after it;

Thank you for any help you can provide!

Re: Skip a section of code

Haikuo — Thu, 04 Oct 2012 19:23:28 GMT

Then I guess you need to wrap them up all in macro, then use conditional macro statments to route your code base on conditions, something like %if %then should help.

Haikuo

Re: Skip a section of code

Astounding — Thu, 04 Oct 2012 19:27:32 GMT

One way to avoid creating a macro just to use %IF/%THEN is to use CALL EXECUTE:

data _null_;

if "&VolAdj" = "Y" %then call execute('%zero');

run;

If you are putting this sort of code into a DATA step that actually processes data, be careful. You want to make sure this comparison occurs only once, not once per observation. There are secondary complications as wlel, but your application seems to be this simple.

Good luck.

Re: Skip a section of code

stat11 — Thu, 04 Oct 2012 20:22:47 GMT

Thank you both!