SAS/ETS User's Guide Example Programs

Using User-Defined Functions and Subroutines

/*--------------------------------------------------------------

                    SAS Sample Library

        Name: tdtex02.sas
 Description: Example program from SAS/ETS User's Guide,
              The TIMEDATA Procedure
       Title: Using User-Defined Functions and Subroutines
     Product: SAS/ETS Software
        Keys: user-defined function
        PROC: TIMEDATA
       Notes:

--------------------------------------------------------------*/



proc fcmp outlib=work.timefnc.funcs;

   subroutine mylog(actual[*], transform[*]);
   outargs transform;
   actlen  = DIM(actual);
   do t = 1 to actlen;
      transform[t] = log(actual[t]);
   end;
   endsub;

   function mymean(actual[*]);
   actlen  = DIM(actual);
   sum = 0;
   do t = 1 to actlen;
      sum = sum + actual[t];
   end;
   return( sum / actlen );
   endsub;

run;
quit;

options cmplib = work.timefnc;



proc timedata data=sashelp.air out=work.air
              print=(scalars arrays);
              id date interval=qtr acc=t format=yymmdd.;
              vars air;
              outarrays logair myair;
              outscalars mystats;

       call mylog(air,logair);
       do t = 1 to dim(air);
       myair[t] = air[t] - logair[t];
       end;
       mystats= mymean(air);

run;
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Using User-Defined Functions and Subroutines
