test_histogram.py 文件源码

def test_bin_labels(self):

        # constructor
        cnt = Counter()
        for i in range(10):
            cnt[i*2] = i

        vc = ValueCounts(key='x', counts=cnt)
        bin_specs = { 'bin_width': 1, 'bin_offset': 0 }

        h = Histogram(vc, variable='x', bin_specs = bin_specs)

        bin_labels = [0, 2, 4, 6, 8, 10, 12, 14, 16, 18]
        h_bin_labels = h.bin_labels()
        self.assertIsInstance(h_bin_labels, np.ndarray)
        self.assertListEqual(h_bin_labels.tolist(), bin_labels)