def setUp(self):
        self.df = tm.makeTimeDataFrame()[:10]
        self.df['id1'] = (0 > self.df['A']).astype(np.int64)
        self.df['id2'] = (self.df['B'] > 0).astype(np.int64)

        self.var_name = 'var'
        self.value_name = 'val'

        self.df1 = pd.DataFrame([[1.067683, -1.110463, 0.20867
                                  ], [-1.321405, 0.368915, -1.055342],
                                 [-0.807333, 0.08298, -0.873361]])
        self.df1.columns = [list('ABC'), list('abc')]
        self.df1.columns.names = ['CAP', 'low']
dataset/ETHPy150Open pydata/pandas/pandas/tests/test_reshape.py/TestMelt.setUp/swapped operands of `>`