Jun-20-2019, 01:35 PM
I test the below code which you provide,
import pandas as pd micolumns = pd.MultiIndex.from_tuples([('X', 'foo', '10'), ('X', 'bar', '10'), ('Y', 'foo', '10'), ('Y', 'bar', '10')], names=['l0', 'l1', 'l2']) arr = pd.DataFrame(pd.np.arange(12).reshape(3,4), columns=micolumns) arr.T.reset_index()