concat和sum多索引熊猫系列

Question

嗨，我有两个熊猫系列

series1

Company      Product      Price
ABC          Apple        1234
             Orange       123
BCD          Apple        123
PCT          Pineapple    434
             Beef         884    

series2

Company      Product      Price
BCD          Orange       751
PCT          Pineapple    632
             Orange       165            

我想将两个系列合并为一个系列3

Company      Product      Price
ABC          Apple        1234
             Orange       123
BCD          Apple        123
             Orange       751
PCT          Pineapple    1066
             Orange       165
             Beef         884

我尝试使用

series3 = pd.concat([series1,series2]).sum(level=1) 

但是，它不能产生我想要的东西。预先谢谢你

Answer 1

您可以尝试使用groupby

series3 = pd.concat([df,df1]).groupby(level=[0,1]).sum()

# Output: 


Company   Product     Price
ABC        Apple      1234
           Orange     123
BCD        Apple      123
           Orange     751
PCT        Beef       884
           Orange     165
           Pineapple  1066