按列分组的df

    # 分组
    import pandas as pd
    import numpy as np
    df=pd.DataFrame({
    'name':['BOSS','Lilei','Lilei','Han','BOSS','BOSS','Han','BOSS'],
    'Year':[2016,2016,2016,2016,2017,2017,2017,2017],
    'Salary':[999999,20000,25000,3000,9999999,999999,3500,999999],
    'Bonus':[100000,20000,20000,5000,200000,300000,3000,400000]
    })
    print(df)
    
    
      
      
      
      
      
      
      
      
      
      
    

    # 产看分组的情况