努力在SAS中传递宏值

Question

Originally, I have the code like this.

data newFile;
set File;
   If Gender NE 'Female' then delete;
   If Group NE 10 then delete;
   If Age GT 30 then delete;
run;

It works just fine. But I want to be able to change those criteria from the top, so I add the macro variable. So far, I have this

&let macGender = 'Female';
&let macGroup = 10;
&let macAge = 30;

data newFile;
set File;
   If Gender NE &macGender then delete;
   If Group NE &macGroup then delete;
   If Age GT &macAge then delete;    
run;

It doesn't seem to work like the original's code. I even tried something like this

Answer 1

You want %let rather than &let .

%let is the macro statement used to assign a value to a macro variable.

&let is a reference to a macro variable which you (probably) have not created.

Answer 2

put % signs instead of & infront of you let statement and get rid of your quotes around female in your macro declaration.

Put those quotes around the actual macro.

For example

%let macGender = Female;

if Gender NE "&macGender." then delete;