Function: mean(band pass(numbers("xxr")) if numbers('ryy') > numbers("xxr") else numbers('yyx'), band pass(numbers("xxr"))) if band pass(numbers("xxr")) > numbers("xxr") if band pass(numbers("xxr")) > numbers('yyx') else numbers('ryy') else numbers("xxr") if band pass(numbers("xxr")) if numbers("xxr") > numbers('ryy') else numbers('yyx') > mean(numbers("xxr") if numbers('yyx') > band pass(numbers("xxr")) else numbers('ryy'), band pass(numbers("xxr"))) else band pass(numbers("xxr"))