pandas Cookbook 第二讲——切割DataFrame

• Splitting
  用布尔变量切割一个DataFrame

import pandas as pd
import numpy as np

df=pd.DataFrame({'AAA':[4,5,6,7],'BBB':[10,20,30,40],'CCC':[10,50,-30,-50]})
df

	AAA	BBB	CCC
0	4	10	10
1	5	20	50
2	6	30	-30
3	7	40	-50

dflow=df[df.AAA<=5]
dfhigh=df[df.AAA>5]
dfhigh

	AAA	BBB	CCC
0	4	10	10
1	5	20	50

splitting！DataFrame只显示了AAA大于等于5的那一部分