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statsmodels 0.13.5 statsmodels.sandbox.tsa.fftarma.ArmaFft.isstationary

statsmodels.sandbox.tsa.fftarma.ArmaFft.isstationary¶

property ArmaFft.isstationary¶

Arma process is stationary if AR roots are outside unit circle.

Returns:

bool: True if autoregressive roots are outside unit circle.