topic differences between call symput and %let in SAS Programming

differences between call symput and %let

Georg_UPB — Mon, 28 Oct 2013 11:54:02 GMT

Hi everyone,

In the example below it makes a difference whether a macro variable is defined using CALL SYMPUT (here: &ab.) or %LET (here: &ab2.).

Why is that and are there any other noteworthy differences?

Thanks!

%Let a=1;

%Let b=2;

Data _null_;

Call Symput ('ab','%Eval(&a.+&b.)');

Run;

%Let ab2=%Eval(&a.+&b.);

%Put &ab.;

%Put &ab2.;

%Let b=0;

%Put &ab.;

%Put &ab2.;

Jagadishkatam — Mon, 28 Oct 2013 11:58:40 GMT

Please refer to the below link, it has good information about the question you asked

Thanks,

Jagadish

data_null__ — Mon, 28 Oct 2013 12:03:55 GMT

It's the VALUE. They are not the same. Add this to see the value.

%Put &ab. %superq(ab); 

%Put &ab2. %superq(ab2);

Georg_UPB — Mon, 28 Oct 2013 12:09:55 GMT

Thank you very much!