statsmodels.tsa.arima_process.ArmaProcess.pacf#
- ArmaProcess.pacf(lags=None)[source]#
Theoretical partial autocorrelation function of an ARMA process
- Parameters:
- lags
int The number of terms (lags plus zero lag) to include in returned pacf.
- lags
- Returns:
ndarrayThe partial autocorrelation of ARMA process given by ar and ma.
Notes
Solves the Yule-Walker equation for each lag order up to
lags.not tested/checked yet