Function: numbers("per") if numbers("yyy") > noise(band pass(numbers("per"))) else band pass(numbers("per")) if noise(band pass(numbers("per"))) > band pass(numbers("per")) else band pass(numbers("per")) if numbers("per") > numbers("per") if noise(band pass(numbers("per"))) > numbers("yyy") else band pass(numbers("per")) else noise(band pass(numbers("per")))
