codekingpro/portable-devtools

1import numpy as np
2from numpy.testing import assert_, assert_equal, assert_raises
3
4
5class TestRegression:
6    def test_kron_matrix(self):
7        # Ticket #71
8        x = np.matrix('[1 0; 1 0]')
9        assert_equal(type(np.kron(x, x)), type(x))
10
11    def test_matrix_properties(self):
12        # Ticket #125
13        a = np.matrix([1.0], dtype=float)
14        assert_(type(a.real) is np.matrix)
15        assert_(type(a.imag) is np.matrix)
16        c, d = np.matrix([0.0]).nonzero()
17        assert_(type(c) is np.ndarray)
18        assert_(type(d) is np.ndarray)
19
20    def test_matrix_multiply_by_1d_vector(self):
21        # Ticket #473
22        def mul():
23            np.asmatrix(np.eye(2)) * np.ones(2)
24
25        assert_raises(ValueError, mul)
26
27    def test_matrix_std_argmax(self):
28        # Ticket #83
29        x = np.asmatrix(np.random.uniform(0, 1, (3, 3)))
30        assert_equal(x.std().shape, ())
31        assert_equal(x.argmax().shape, ())
32