Function: gradient[0](mean(noise(numbers('epe') if numbers("xyx") > numbers('yxr') else numbers('xyy') if numbers("xyx") > numbers('epe') else numbers('xyy')), numbers('yxr') if numbers('epe') > numbers('xyy') else numbers("xyx") if numbers('xyy') > numbers("xyx") else numbers('epe')))
