statsmodels.tsa.stattools.pacf_yw

statsmodels.tsa.stattools.pacf_yw(x, nlags=40, method='unbiased')[source]

Partial autocorrelation estimated with non-recursive yule_walker

Parameters
x1d array

observations of time series for which pacf is calculated

nlagsint

largest lag for which pacf is returned

method‘unbiased’ (default) or ‘mle’

method for the autocovariance calculations in yule walker

Returns
pacf1d array

partial autocorrelations, maxlag+1 elements

Notes

This solves yule_walker for each desired lag and contains currently duplicate calculations.