關(guān)于混淆矩陣,下列說法錯(cuò)誤的是()。
A.靈敏度=a/(a+c)B.假陽性率=b/(b+d)C.ROC曲線橫坐標(biāo)是靈敏度,縱坐標(biāo)是特異度D.臨界值的確定可以用約登指數(shù)
A.ARIMA(0,1,0)Yt=Yt-1B.ARIMA(0,1,0)Yt=Yt-1+EtC.ARIMA(0,1,0)Yt=U+Yt-1+EtD.ARIMA(0,1,0)Yt=U+Yt-1