Function: logn(band pass(numbers('yxr'))) if band pass(numbers('yxr')) if logn(band pass(numbers('yxr'))) > max(noise(logn(band pass(numbers('yxr')))), logn(band pass(numbers('yxr')))) else noise(logn(band pass(numbers('yxr')))) > max(noise(logn(band pass(numbers('yxr')))), logn(band pass(numbers('yxr')))) else noise(logn(band pass(numbers('yxr'))))
