“Jak rozpakować pandy wielowarstwowe” Kod odpowiedzi

Jak rozpakować pandy wielowarstwowe

import pandas as pd
import numpy as np
arrays = [['Monday','Monday','Tursday','Tursday'],
                        ['Morning','Noon','Morning','Evening']]
tuples = list(zip(*arrays))
index = pd.MultiIndex.from_tuples(tuples, names=['Weekday', 'Time'])
df = pd.DataFrame(np.random.randint(5, size=(4,2)), index=index)

In [39]: df
Out[39]: 
                 0  1
Weekday Time         
Monday  Morning  1  3
        Noon     2  1
Tursday Morning  3  3
        Evening  1  2

In [40]: pd.DataFrame(df.to_records())
Out[40]: 
   Weekday     Time  0  1
0   Monday  Morning  1  3
1   Monday     Noon  2  1
2  Tursday  Morning  3  3
3  Tursday  Evening  1  2