What is the purpose of the Augmented Dickey-Fuller (ADF) test in time series analysis?

Data Science with Python Hard

Data Science with Python — Hard

What is the purpose of the Augmented Dickey-Fuller (ADF) test in time series analysis?

Key points

  • ADF test checks for stationarity by testing for a unit root
  • Rejection of the null hypothesis indicates the series is stationary
  • Stationarity is necessary for ARIMA modeling

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