python类nanvar()的实例源码

def test_nanvar(self):
        tgt = np.var(self.mat)
        for mat in self.integer_arrays():
            assert_equal(np.nanvar(mat), tgt)

        tgt = np.var(mat, ddof=1)
        for mat in self.integer_arrays():
            assert_equal(np.nanvar(mat, ddof=1), tgt)

def test_ddof(self):
        nanfuncs = [np.nanvar, np.nanstd]
        stdfuncs = [np.var, np.std]
        for nf, rf in zip(nanfuncs, stdfuncs):
            for ddof in [0, 1]:
                tgt = [rf(d, ddof=ddof) for d in _rdat]
                res = nf(_ndat, axis=1, ddof=ddof)
                assert_almost_equal(res, tgt)