test_categorical.py 文件源码

def test_reshaping(self):

        p = tm.makePanel()
        p['str'] = 'foo'
        df = p.to_frame()
        df['category'] = df['str'].astype('category')
        result = df['category'].unstack()

        c = Categorical(['foo'] * len(p.major_axis))
        expected = DataFrame({'A': c.copy(),
                              'B': c.copy(),
                              'C': c.copy(),
                              'D': c.copy()},
                             columns=Index(list('ABCD'), name='minor'),
                             index=p.major_axis.set_names('major'))
        tm.assert_frame_equal(result, expected)