test_financial.py 文件源码

def test_pmt(self):
        res = np.pmt(0.08/12, 5*12, 15000)
        tgt = -304.145914
        assert_allclose(res, tgt)
        # Test the edge case where rate == 0.0
        res = np.pmt(0.0, 5*12, 15000)
        tgt = -250.0
        assert_allclose(res, tgt)
        # Test the case where we use broadcast and
        # the arguments passed in are arrays.
        res = np.pmt([[0.0, 0.8],[0.3, 0.8]],[12, 3],[2000, 20000])
        tgt = np.array([[-166.66667, -19311.258],[-626.90814, -19311.258]])
        assert_allclose(res, tgt)