

@cache_readonly
def arfreq(self):
    '\n        Returns the frequency of the AR roots.\n\n        This is the solution, x, to z = abs(z)*exp(2j*np.pi*x) where z are the\n        roots.\n        '
    z = self.arroots
    if (not z.size):
        return
    return (np.arctan2(z.imag, z.real) / (2 * pi))

dataset/ETHPy150Open statsmodels/statsmodels/statsmodels/tsa/arima_model.py ARMAResults.arfreq/original