Function: noise(divide(minus(numbers('rep') if numbers("yxx") > numbers('epe') else numbers("xyx") if numbers('rep') > numbers('epe') else numbers("xyx"), numbers('epe') if numbers("xyx") > numbers('rep') else numbers("yxx")), numbers('epe') if numbers('rep') if numbers("xyx") > numbers('epe') else numbers("yxx") > numbers('rep') else numbers("xyx")))