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Regression modelEconometrics / time series

Kipimo cha Mizizi ya Unit ya Fourier ADF

Kipimo cha mizizi ya unit ya Fourier ADF huongeza mfumo sanifu wa Augmented Dickey-Fuller kwa kujumuisha vipengele vya Fourier vya masafa ya chini katika sehemu ya uamuzi. Hii huruhusu kipimo kutathmini kwa usahihi mabadiliko ya muundo yanayotokea kwa taratibu katika kiwango au mwelekeo wa mfululizo wa wakati bila kuhitaji ujuzi wa awali wa idadi, muda, au umbo la mabadiliko.

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Vyanzo

  1. Becker, R., Enders, W., & Lee, J. (2006). A stationarity test in the presence of an unknown number of smooth breaks. Journal of Time Series Analysis, 27(3), 381-409. DOI: 10.1111/j.1467-9892.2006.00478.x
  2. Enders, W., & Lee, J. (2012). A unit root test using a Fourier series to approximate smooth breaks. Oxford Bulletin of Economics and Statistics, 74(4), 574-599. DOI: 10.1111/j.1468-0084.2011.00662.x

Jinsi ya kunukuu ukurasa huu

ScholarGate. (2026, June 3). Fourier Augmented Dickey-Fuller Unit Root Test. ScholarGate. https://scholargate.app/sw/econometrics/fourier-adf-unit-root-test

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Imerejelewa na

ScholarGateFourier ADF unit root test (Fourier Augmented Dickey-Fuller Unit Root Test). Imepatikana 2026-06-15 kutoka https://scholargate.app/sw/econometrics/fourier-adf-unit-root-test · Seti ya data: https://doi.org/10.5281/zenodo.20539026