ex)
import pandas as pd
import seaborn as sns
titanic = sns.load_dataset('titanic')
df = titanic.loc[:, ['age','sex', 'class', 'fare', 'survived']]
grouped = df.groupby(['class','sex'])
gdf = grouped.mean()
print(gdf)
print('\n')
print(type(gdf))
print(gdf.loc['First'])
age fare survived class sex First female 34.611765 106.125798 0.968085 male 41.281386 67.226127 0.368852 Second female 28.722973 21.970121 0.921053 male 30.740707 19.741782 0.157407 Third female 21.750000 16.118810 0.500000 male 26.507589 12.661633 0.135447 <class 'pandas.core.frame.DataFrame'>
print(gdf.loc[ ('First','female') ])
age 34.611765 fare 106.125798 survived 0.968085
print(gdf.xs('male',level='sex'))
age fare survived class First 41.281386 67.226127 0.368852 Second 30.740707 19.741782 0.157407 Third 26.507589 12.661633 0.135447