采用sas实验设计生成的Plackeet-Burman表是否具有正交的特性?或者说于一般的正交设计差别在哪里?实验设计表如下
| run | a | b | c | d | e | f | g | h | i | j | 
| 1 | 2 | 2 | 2 | 1 | 2 | 2 | 1 | 2 | 1 | 1 | 
| 2 | 1 | 2 | 2 | 1 | 2 | 1 | 1 | 1 | 2 | 2 | 
| 3 | 1 | 2 | 2 | 2 | 1 | 2 | 2 | 1 | 2 | 1 | 
| 4 | 2 | 1 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 
| 5 | 2 | 1 | 2 | 2 | 1 | 2 | 1 | 1 | 1 | 2 | 
| 6 | 1 | 1 | 2 | 2 | 2 | 1 | 2 | 2 | 1 | 2 | 
| 7 | 2 | 2 | 1 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 
| 8 | 2 | 2 | 1 | 2 | 2 | 1 | 2 | 1 | 1 | 1 | 
| 9 | 1 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 2 | 
| 10 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 2 | 2 | 
| 11 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 2 | 2 | 1 | 
| 12 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |