直接上例子。
import pandas as pd
df = pd.DataFrame({'class':['a','a','b','b','a','a','b','c','c'],'score':[3,5,6,7,8,9,10,11,14]})
df:
class
score
0
a
3
1
a
5
2
b
6
3
b
7
4
a
8
5
a
9
6
b
10
7
c
11
8
c
14
df.sort_values(['class','score'],ascending=[1,0],inplace=True)
grouped =
