!AAPC = @mean(@abs(@pc(_yhat)))
and I get an error
@PC is an illegal or reserved name in "!AAPC = @MEAN(@ABS(@PC(_YHAT)))
or
for mean absolute error
!MAE = @sum(@abs( _yer)))/!h
Is there something I am missing!MAE is not defined or is an illegal command in "!MAE = @SUM(@ABS( _YER)))/13"
