想请教各位大神,如果我想把这样一组数据按照year和city把
exsum imsum fexsum iexsum pexsum pimsum iimsum fimsum这六个数据合并成一行应该怎么做呢(我想要的结果附在最下面了)我想的方法是纵向加总数据,可是要怎么写命令呢?
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year
| city | fexsum | iexsum | pexsum | pimsum | iimsum | fimsum |
2000 | 北京 | 6.90E+07 | 5.24E+07 | 1.76E+07 | 2.04E+07 | 4.90E+07 | 3.70E+07
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