Function: numbers('ryy') if gradient[1](min(numbers('ryy'), numbers("per"))) > min(numbers('ryy'), numbers("per")) else band pass(gradient[1](min(numbers('ryy'), numbers("per")))) if band pass(gradient[1](min(numbers('ryy'), numbers("per")))) > gradient[1](min(numbers('ryy'), numbers("per"))) else min(numbers('ryy'), numbers("per"))
