def _stats(self, df, nc):
        val = df + 2.0*nc
        return (df + nc, 2*val, sqrt(8)*(val+nc)/val**1.5,
                12.0*(val+2*nc)/val**2.0)
dataset/ETHPy150Open scipy/scipy/scipy/stats/_continuous_distns.py/ncx2_gen._stats/original