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statsmodels.sandbox.tsa.fftarma.ArmaFft.acf

ArmaFft.acf(lags=None)

Theoretical autocorrelation function of an ARMA process

Parameters:
  • ar (array_like, 1d) – coefficient for autoregressive lag polynomial, including zero lag
  • ma (array_like, 1d) – coefficient for moving-average lag polynomial, including zero lag
  • lags (int) – number of terms (lags plus zero lag) to include in returned acf
Returns:

acf – autocorrelation of ARMA process given by ar, ma

Return type:

array

See also

arma_acovf, acf, acovf

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© 2006–2008 Scipy Developers
© 2006 Jonathan E. Taylor
Licensed under the 3-clause BSD License.
http://www.statsmodels.org/stable/generated/statsmodels.sandbox.tsa.fftarma.ArmaFft.acf.html