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Help with Custom Design

vikram

Hello,

I am trying to set up a design in the following way:

Custom Design
Factor	Type	Level
Drop Height	Discrete Numeric	3
Size	Discrete Numeric	3
Material	Categorical	2
Replicates	Blocks	3

As mentioned I am using the custom design option, and using 18 runs per block. And I have 3 response variable and a total of 54 total runs. The problem I am facing is that when JMP is making the design table, the distribution of levels is not unique. Sometime times there are more than 3 replicates for a certain level, some level 2 of the discrete numeric factors are getting skipped. I have included the following along with this most:

1) Custom Design - JMP - Full Model: This is the actual project model based on the table mentioned above. The highlighted items are the ones that are getting unnecessarily duplicated

2) Custom Design_Vikram : This is the JMP project file, which I quickly setup to show that level 2 is missing for discrete numeric factors X1 and X2.

Can you please suggest the correct way to deal with this?

Custom Design - JMP - Full Model.pdf

Custom Design_042613.jmp.zip

Accepted answers

louv

I'm not sure what is going on. You have not changed the model terms have you? There are some "if possible" terms that are required to drive the model.

All comments

louv

Vikram,

I had no problem obtaining a balanced design with your conditions. I just increased the number os starts (under the red triangle) to 1000 and all three of my blocks and also set my user specified run number = 54 and I had a balance of the discrete numeric factors and categorical factors.

vikram

Thanks for your reply. Did you use the custom design option? One thing I did not do is use the number of starts as 1000, as you mentioned.

vikram

I changed the start to a 1000, but still I am not getting the correct design. I have copied the custom design tab in this post. If you see for discrete numeric variables X1 and X2 level 2 is missing. Thanks.

Design

Run X1 X2 X3 X4

1 1 1 L2 2

2 1 1 L2 2

3 3 1 L2 3

4 3 1 L2 3

5 3 3 L2 1

6 3 3 L2 1

7 3 1 L2 1

8 3 1 L2 2

9 1 3 L1 2

10 3 1 L2 2

11 3 3 L1 2

12 3 1 L1 2

13 1 1 L2 3

14 1 1 L1 2

15 3 1 L1 3

16 3 1 L1 2

17 1 3 L2 2

18 3 3 L1 1

19 3 1 L1 1

20 3 3 L1 3

21 1 3 L2 1

22 3 3 L2 3

23 1 1 L1 2

24 3 3 L1 2

25 3 1 L1 3

26 3 1 L2 1

27 3 3 L2 2

28 1 1 L1 1

29 3 3 L1 3

30 1 1 L1 3

31 1 3 L1 2

32 1 3 L2 1

33 3 3 L2 3

34 1 3 L1 1

35 1 1 L1 3

36 1 1 L1 1

37 1 3 L2 1

38 1 1 L1 1

39 1 1 L2 1

40 3 1 L2 2

41 1 1 L2 1

42 3 3 L1 2

43 3 1 L1 1

44 1 3 L1 1

45 3 3 L2 2

46 3 3 L1 1

47 1 3 L2 3

48 1 3 L1 3

49 1 3 L2 2

50 1 3 L1 3

51 1 3 L2 3

52 1 3 L1 3

53 1 1 L2 3

54 3 1 L1 3

louv

Did you specify 18 runs per block?

vikram

Yes I did. In custom design when I added the blocking factor, I selected custom of 18 runs per block. Then I selected 3 replicates. To make it 3 runs with 18 runs each to include all treatment combinations in one block.

louv

I don't think that you need to specify the replicates.

enter your factors

enter your block of 18 runs per block

enter 54 as number of runs