Python中的groupby分组功能的实例代码

import pandas as pd
A=pd.Data ([['Beijing',1.68,2300,'city','Yes'],['Tianjin',1.13,1293,'city','Yes'],['Shaanxi',20.56,3732,'Province','Yes'],['Hebei',18.77,7185,'Province','No'],['Qinghai',72,560,'Province','No']],columns=['Name','Area','Population','Administrative_level','Have 985'])
for name,group in A.groupby('Administrative_level'):
  print(name)
  print(group)
for name,group in A.groupby(['Administrative_level','Have 985']):
  print(name)
  print(group)