def _stats(self, df):
        mu = df
        mu2 = 2*df
        g1 = 2*sqrt(df/2.0)
        g2 = 12.0/df
        return mu, mu2, g1, g2
dataset/ETHPy150Open scipy/scipy/scipy/stats/_continuous_distns.py/chi2_gen._stats/swapped operands of `/`