我有一张桌子,比如
+---------+---------+--------+--------+--------+
| Product | Classif | Type 1 | Type 2 | Type 3 |
+---------+---------+--------+--------+--------+
| a | Type 1 | 2 | 6 | 8 |
| b | Type 2 | 3 | 9 | 11 |
| c | Type 3 | 5 | 10 | 15 |
+---------+---------+--------+--------+--------+
我有一个产品列表和它们的分类。产品和分类之间的匹配足以确定它们的价格(在第 3 到第 5 列中)。我想要一个新列,根据其类型显示每种产品的价格,例如:
+---------+---------+--------+--------+--------+-------+
| Product | Classif | Type 1 | Type 2 | Type 3 | Price |
+---------+---------+--------+--------+--------+-------+
| a | Type 1 | 2 | 6 | 8 | 2 |
| b | Type 2 | 3 | 9 | 11 | 9 |
| c | Type 3 | 5 | 10 | 15 | 15 |
+---------+---------+--------+--------+--------+-------+
程序比较列classif的值,并从相应列中获取值。