请教高手:SAS中的tabulate程序中,如果要同时对好几个变量求百分数,数据如下,那么pctn的分母应该是怎样的才能使每一个变量的值的百分比能够分别计算出来呢?谢谢!
| Q1a_1 | Q1a_7 | Q1c_7 | Q3 | Q4_1 | Q4_3
|
| 1 | | | 2 | 3 | 3 |
| 1 | | | 1 | 1 | 2 |
| 1 | | | 1 | 1 | 3 |
| 1 | 1 | 0 | 1 | 3 | 2 |
| 1 | 1 | 0 | 1 | 3 | 3 |
| 1 | 1 | 0 | 1 | 1 | 3 |
| 1 | | | 2 | 3 | 2 |
| 1 | | | 1 | 3 | 3 |
| 1 | | | 1 | 1 | 2 |
| 1 | 1 | 0 | 1 | 1 | 2 |
| 1 | 1 | 8 | 1 | 1 | 2 |
| 1 | 1 | 0 | 1 | 3 | 3 |
| 1 | 1 | 0 | 1 | 3 | 3 |
| 1 | 1 | 0 | 1 | 1 | 2 |
| 1 | | | 1 | 1 | 2 |
| 1 | | | 2 | 1 | 2 |
| 1 | 1 | 0 | 2 | 1 | 3 |
| 1 | 1 | 0 | 1 | 3 | 3 |
| 1 | 1 | 0 | 1 | 3 | 3 |
| 1 | 1 | 0 | 2 | 1 | 2 |