SAS：从tableB向tableA添加一列

Question

我有两个表的样子，我想从tableB向tableA添加列得分，然后得到tableC，在SAS中怎么做？

唯一的规则是在tableA名称“score”中添加一列，其值与tableB中的“score”列相同（在tableB中都是相同的）

+----+---+---+---+
| id | b | c | d |
+----+---+---+---+
|  1 | 5 | 7 | 2 |
|  2 | 6 | 8 | 3 |
|  3 | 7 | 8 | 1 |
|  4 | 5 | 7 | 2 |
|  5 | 6 | 8 | 3 |
|  6 | 7 | 8 | 1 |
+----+---+---+---+
       tableA

+---+---+-------+
| e | f | score |
+---+---+-------+
| 3 | 7 |    11 |
| 4 | 6 |    11 |
| 5 | 5 |    11 |
+---+---+-------+
      tableB

+----+---+---+---+-------+
| id | b | c | d | score |
+----+---+---+---+-------+
|  1 | 5 | 7 | 2 |    11 |
|  2 | 6 | 8 | 3 |    11 |
|  3 | 7 | 8 | 1 |    11 |
|  4 | 5 | 7 | 2 |    11 |
|  5 | 6 | 8 | 3 |    11 |
|  6 | 7 | 8 | 1 |    11 |
+----+---+---+---+-------+
       tableC

Answer 1

如果两个表中都存在“ id ”，则可以使用以下命令创建表C：

if Stock_signals.Signal[-1] == ('Buy'):
  Stock_signals = Stock_signals[:-1]

请确认这是您所需要的？