6-3混合水平的均匀设计表.ppt

{1,2}?1 {3,4}?2 {5,6}?3 同时将第3列水平合并为二水平： {1,2,3}?1 {4,5,6}?2 于是得设计表(表20)．这是一个混合水平的设计表U6(32×21） 这个表有很好的均衡性。例如，A列和C列，B列和C列的二因素设计正好组成它们的全面试验方案，A列和B列的二因素设计中没有重复试验． 我们要安排一个二因素(A,B)五水平和一因素(C)二水平的试验．这项试验若用正交设计，可用L50表，但试验次数太多．若用均匀设计来安排，可用U10(52×21)． 若选用U10(1010)的1，2，5三列，用同样的拟水平技术，便可获得表22列举的U10(52×21)表它有较好的均衡性． 对1，5列采用水平合并 {1,2}?1 。。。。。。。 {9,10}?5 {1,2，3，4，5}?1 {6,7，8，9，10}?2 于是得表22的方案。 经计算发现现．表22结出的表具有偏差D＝0.39253，达到了最小． 表-22 拟水平设计U10(52×21) 定义两列参数分别为因子数和水平数并选中 选择混合水平均匀设计命令 定义试验次数 定义试验次数 混合水平均匀设计表U12(121×61×41×32) * First step, the experimenter carefully chooses factors and experimental domain, and determines suitable number of levels for each factor. In this example, the experimenters chose three factors: (table shows) x-one, the ratio of raw materials, x-two the amount of pyridine, x-three, the time length of reaction, and for each factor, they chose 6 levels as in the table. First step, the experimenter carefully chooses factors and experimental domain, and determines suitable number of levels for each factor. In this example, the experimenters chose three factors: (table shows) x-one, the ratio of raw materials, x-two the amount of pyridine, x-three, the time length of reaction, and for each factor, they chose 6 levels as in the table. First step, the experimenter carefully chooses factors and experimental domain, and determines suitable number of levels for each factor. In this example, the experimenters chose three factors: (table shows) x-one, the ratio of raw materials, x-two the amount of pyridine, x-three, the time length of reaction, a