Question

我需要按两列进行分组，并对第三列求和。我的数据如下：

site        industry        spent
Auto        Cars             1000
Auto        Fashion          200
Auto        Housing          100
Auto        Housing          300
Magazine    Cars             100
Magazine    Fashion          200
Magazine    Housing          300
Magazine    Housing          500

我的代码：

df.groupby(by=['site', 'industry'])['Revenue'].sum()

输出为：

                       spent
site        industry
Auto        Cars             1000
            Fashion          200
            Housing          400
Magazine    Cars             100
            Fashion          200
            Housing          800

当我将其转换为csv时，我只会花一栏。我想要的输出与原始数据的格式相同，只需要对收入进行求和，并且需要查看列中的所有值。

Answer 1

尝试使用as_index=False：

df = df.groupby(by=['site', 'industry'], as_index=False).sum()
print(df)


       site industry  spent
0      Auto     Cars   1000
1      Auto  Fashion    200
2      Auto  Housing    400
3  Magazine     Cars    100
4  Magazine  Fashion    200
5  Magazine  Housing    800

熊猫分组和并显示值

1 个答案: