pandas中的DataFrame中可以根据某个属性的同一值进行聚合分组,可以选单个属性,也可以选多个属性:
代码示例:
import pandas as pd A=pd.DataFrame([['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)