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csetzkorn
Lapis Lazuli | Level 10

This is a very simple one. I try to add 2 macro variables, which are initialized from SAS EG prompts (Number1 and Number2). I currently use this code it should work for non integer number):

 

%let Result = %sysevalf(&Number1.,integer) + %sysevalf(&Number2.,integer); 

%put &Result.;

Unfortunately, only the expression rather than the result is printed. 

1 REPLY 1
gamotte
Rhodochrosite | Level 12

Hello,

 

Your problem is independant of Eg prompts.

When a macrovariable is created as follows :

 

%let mv1=1; %let mv2=2;

%let mv=&mv1.+&mv2.;

 

The compiler only performs text substitution so you wil end up with &mv.=1+2.

 

If you want to evaluate the resulting expression you have to enclose the whole

expression in an evaluation function %eval() or %sysevalf

 

%let mv=%eval(&mv1.+&mv2.); /* => 3 */

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