Function: noise(sqrt(mean(numbers("yxx"), numbers('ryy'))) if divide(minus(sqrt(mean(numbers("yxx"), numbers('ryy'))), mean(numbers("yxx"), numbers('ryy'))), sqrt(mean(numbers("yxx"), numbers('ryy')))) > mean(numbers("yxx"), numbers('ryy')) else minus(sqrt(mean(numbers("yxx"), numbers('ryy'))), mean(numbers("yxx"), numbers('ryy'))))
