Answered by : fantastic-fly-h9hn86q5tzon

In [57]: df.groupby(['cluster', 'org']).mean()
Out[57]: time
cluster org
1 a 438886 c 23
2 d 9874 h 34
3 w 6

Source : https://stackoverflow.com/questions/30328646/python-pandas-group-by-in-group-by-and-average | Last Update : Wed, 01 Apr 20

Answered by : macarrony00

df.groupby(['A', 'B']).mean()

Source : https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.core.groupby.GroupBy.mean.html | Last Update : Sat, 30 May 20