Kipimo cha Mizizi ya Muungano cha Augmented Dickey-Fuller (ADF)
Kipimo cha Augmented Dickey-Fuller ni utaratibu sanifu wa kubaini kama mfululizo wa muda mmoja una mizizi ya muungano - yaani, kama mfululizo huo hauna uthabiti. Kinapanua kipimo cha awali cha Dickey-Fuller kwa kujumuisha vipengele vya tofauti vilivyocheleweshwa ambavyo hufyonza uhusiano wa mfululizo katika mabaki, na kufanya kipimo kuwa halali kwa aina mbalimbali za michakato ya mfululizo wa muda inayokutwa katika uchumi na fedha.
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Method map
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Vyanzo
- Said, S. E., & Dickey, D. A. (1984). Testing for unit roots in autoregressive-moving average models of unknown order. Biometrika, 71(3), 599–607. DOI: 10.1093/biomet/71.3.599 ↗
- Dickey, D. A., & Fuller, W. A. (1979). Distribution of the estimators for autoregressive time series with a unit root. Journal of the American Statistical Association, 74(366), 427–431. DOI: 10.2307/2286348 ↗
Jinsi ya kunukuu ukurasa huu
ScholarGate. (2026, June 3). Augmented Dickey-Fuller Unit Root Test. ScholarGate. https://scholargate.app/sw/econometrics/augmented-dickey-fuller-unit-root-test
Which method?
Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.
- Mfumo wa ARIMA (Autoregressive Integrated Moving Average)Ekonometriki↔ compare
- Kipimo cha Engle-Granger cha Uko-na-uhusianoEkonometriki↔ compare
- Jaribio la Usimamishaji la KPSSEkonometriki↔ compare
- Kipimo cha Phillips-Perron cha Mizizi ya MuunganoEkonometriki↔ compare
- Kipimo cha Zivot-Andrews cha Mapumziko ya KiunziEkonometriki↔ compare
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