Пример #1
0
    def test_factorize(self):
        idx1 = DatetimeIndex(
            ["2014-01", "2014-01", "2014-02", "2014-02", "2014-03", "2014-03"]
        )

        exp_arr = np.array([0, 0, 1, 1, 2, 2], dtype=np.intp)
        exp_idx = DatetimeIndex(["2014-01", "2014-02", "2014-03"])

        arr, idx = idx1.factorize()
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        arr, idx = idx1.factorize(sort=True)
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        # tz must be preserved
        idx1 = idx1.tz_localize("Asia/Tokyo")
        exp_idx = exp_idx.tz_localize("Asia/Tokyo")

        arr, idx = idx1.factorize()
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        idx2 = pd.DatetimeIndex(
            ["2014-03", "2014-03", "2014-02", "2014-01", "2014-03", "2014-01"]
        )

        exp_arr = np.array([2, 2, 1, 0, 2, 0], dtype=np.intp)
        exp_idx = DatetimeIndex(["2014-01", "2014-02", "2014-03"])
        arr, idx = idx2.factorize(sort=True)
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        exp_arr = np.array([0, 0, 1, 2, 0, 2], dtype=np.intp)
        exp_idx = DatetimeIndex(["2014-03", "2014-02", "2014-01"])
        arr, idx = idx2.factorize()
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        # freq must be preserved
        idx3 = date_range("2000-01", periods=4, freq="M", tz="Asia/Tokyo")
        exp_arr = np.array([0, 1, 2, 3], dtype=np.intp)
        arr, idx = idx3.factorize()
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, idx3)
Пример #2
0
    def test_factorize(self):
        idx1 = DatetimeIndex(['2014-01', '2014-01', '2014-02', '2014-02',
                              '2014-03', '2014-03'])

        exp_arr = np.array([0, 0, 1, 1, 2, 2], dtype=np.intp)
        exp_idx = DatetimeIndex(['2014-01', '2014-02', '2014-03'])

        arr, idx = idx1.factorize()
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        arr, idx = idx1.factorize(sort=True)
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        # tz must be preserved
        idx1 = idx1.tz_localize('Asia/Tokyo')
        exp_idx = exp_idx.tz_localize('Asia/Tokyo')

        arr, idx = idx1.factorize()
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        idx2 = pd.DatetimeIndex(['2014-03', '2014-03', '2014-02', '2014-01',
                                 '2014-03', '2014-01'])

        exp_arr = np.array([2, 2, 1, 0, 2, 0], dtype=np.intp)
        exp_idx = DatetimeIndex(['2014-01', '2014-02', '2014-03'])
        arr, idx = idx2.factorize(sort=True)
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        exp_arr = np.array([0, 0, 1, 2, 0, 2], dtype=np.intp)
        exp_idx = DatetimeIndex(['2014-03', '2014-02', '2014-01'])
        arr, idx = idx2.factorize()
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        # freq must be preserved
        idx3 = date_range('2000-01', periods=4, freq='M', tz='Asia/Tokyo')
        exp_arr = np.array([0, 1, 2, 3], dtype=np.intp)
        arr, idx = idx3.factorize()
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, idx3)
Пример #3
0
    def test_factorize(self):
        idx1 = DatetimeIndex(
            ['2014-01', '2014-01', '2014-02', '2014-02', '2014-03', '2014-03'])

        exp_arr = np.array([0, 0, 1, 1, 2, 2], dtype=np.intp)
        exp_idx = DatetimeIndex(['2014-01', '2014-02', '2014-03'])

        arr, idx = idx1.factorize()
        self.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        arr, idx = idx1.factorize(sort=True)
        self.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        # tz must be preserved
        idx1 = idx1.tz_localize('Asia/Tokyo')
        exp_idx = exp_idx.tz_localize('Asia/Tokyo')

        arr, idx = idx1.factorize()
        self.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        idx2 = pd.DatetimeIndex(
            ['2014-03', '2014-03', '2014-02', '2014-01', '2014-03', '2014-01'])

        exp_arr = np.array([2, 2, 1, 0, 2, 0], dtype=np.intp)
        exp_idx = DatetimeIndex(['2014-01', '2014-02', '2014-03'])
        arr, idx = idx2.factorize(sort=True)
        self.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        exp_arr = np.array([0, 0, 1, 2, 0, 2], dtype=np.intp)
        exp_idx = DatetimeIndex(['2014-03', '2014-02', '2014-01'])
        arr, idx = idx2.factorize()
        self.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)

        # freq must be preserved
        idx3 = date_range('2000-01', periods=4, freq='M', tz='Asia/Tokyo')
        exp_arr = np.array([0, 1, 2, 3], dtype=np.intp)
        arr, idx = idx3.factorize()
        self.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, idx3)
Пример #4
0
    def test_factorize(self):
        idx1 = DatetimeIndex(
            ["2014-01", "2014-01", "2014-02", "2014-02", "2014-03", "2014-03"])

        exp_arr = np.array([0, 0, 1, 1, 2, 2], dtype=np.intp)
        exp_idx = DatetimeIndex(["2014-01", "2014-02", "2014-03"])

        arr, idx = idx1.factorize()
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)
        assert idx.freq == exp_idx.freq

        arr, idx = idx1.factorize(sort=True)
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)
        assert idx.freq == exp_idx.freq

        # tz must be preserved
        idx1 = idx1.tz_localize("Asia/Tokyo")
        exp_idx = exp_idx.tz_localize("Asia/Tokyo")

        arr, idx = idx1.factorize()
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)
        assert idx.freq == exp_idx.freq

        idx2 = DatetimeIndex(
            ["2014-03", "2014-03", "2014-02", "2014-01", "2014-03", "2014-01"])

        exp_arr = np.array([2, 2, 1, 0, 2, 0], dtype=np.intp)
        exp_idx = DatetimeIndex(["2014-01", "2014-02", "2014-03"])
        arr, idx = idx2.factorize(sort=True)
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)
        assert idx.freq == exp_idx.freq

        exp_arr = np.array([0, 0, 1, 2, 0, 2], dtype=np.intp)
        exp_idx = DatetimeIndex(["2014-03", "2014-02", "2014-01"])
        arr, idx = idx2.factorize()
        tm.assert_numpy_array_equal(arr, exp_arr)
        tm.assert_index_equal(idx, exp_idx)
        assert idx.freq == exp_idx.freq