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# scikits.statsmodels.sandbox.tsa.pacf_yw

`scikits.statsmodels.sandbox.tsa.``pacf_yw`(x, maxlag=20, method='unbiased')

  Partial autocorrelation estimated with non-recursive yule_walker

  Parameters: | x : 1d array observations of time series for which pacf is calculated maxlag : int largest lag for which pacf is returned method : ‘unbiased’ (default) or ‘mle’ method for the autocovariance calculations in yule walker
  Returns: | pacf : 1d array partial autocorrelations, maxlag+1 elements

  Notes

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

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