Why call define works with display variables but not with analysis variables ?

[xxformat_com]

Hi,

Why call define works with display variables but not with analysis variables ?

proc report data=sashelp.class;
    column name--height;
    define name   / display;
    define sex    / display;
    define age    / display;
    *define age   / analysis mean;
    define height / analysis mean;
    
    compute age;
       if age=12 then call define(_row_,'style','style=[background=lightpink]');
    endcomp;
    
    rbreak after / summarize;
run;

When age is used as display the row where age=12 will be in lightpink, but by definition, the mean won't be available.

If we change age to analysis mean, the mean will be calculated but the rows won't be in lightpinkt.

[Ksharp · Accepted solution]

If you are using
define age / analysis mean;

Try :
compute age;
if age.mean=12 then call define(_row_,'style','style=[background=lightpink]');
endcomp;