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- DOE Scripting 2: How to set up a full/fractional factorial design

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Jun 9, 2015 12:42 AM
(4145 views)

Hi & Sorry for bothering you again.

Somehow I can't find a way to create a full-factorial design for a variable number of factors (k). Same for fractional factorial design. I know how to do it if I know the number of factors, as I can use

full_factorial_design = DOE**(**Screening Design**)**;

full_factorial_design << **add factor**;

full_factorial_design << **add factor**;

full_factorial_design << **add factor**;

full_factorial_design << **add factor**;

full_factorial_design << **Make Design****(****4****)**;

But this works only if i want to select the 4th design in the design list. This would not be the full-factorial design if I had 6 factors.

Is there any documentation about the scripting functions for the DOE-platforms in JMP? I could not find anything in the Scripting Guide or the DOE-pdf. Sadly the Scripting-Index isn't very helpful either.

Thanks for all hints!

Sebastian

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If you want a full factorial design, you can use the Full Factorial designer:

DOE

(Full Factorial Design,

{Add Response(Maximize, "Y",.,.,.),Add Factor

(Continuous,{-1,1}, "X1",0),Add Factor

(Continuous,{-1,1}, "X2",0),Add Factor

(Continuous,{-1,1}, "X3",0),Add Factor

(Continuous,{-1,1}, "X4",0),Add Factor

(Continuous,{-1,1}, "X5",0),Make Design

}

);

I don't see an obvious way to get the contents of the design choices from the Screening designer, so that you can see what each number design is.

-Jeff

-Jeff

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Re: DOE Scripting 2: How to set up a full/fractional factorial design

Continuing the way that you started, you could iterate for the necessary number of factors.

n = 4;

full_factorial_design = DOE**(**Screening Design**)**;

For( f = 1, f <=n, f++, full_factorial_design << **add factor**);

full_factorial_design << **Make Design****(n****)**;

Learn it once, use it forever!

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Re: DOE Scripting 2: How to set up a full/fractional factorial design

Hi Mark,

thanks for the reply. Sadly this does not solve my problem as **Make Design(4)** will be a full-factorial design for 4 factors (as it is the 4th design in the design list) but **Make Design(5)** is not the full-factorial design for 5 factors.

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If you want a full factorial design, you can use the Full Factorial designer:

DOE

(Full Factorial Design,

{Add Response(Maximize, "Y",.,.,.),Add Factor

(Continuous,{-1,1}, "X1",0),Add Factor

(Continuous,{-1,1}, "X2",0),Add Factor

(Continuous,{-1,1}, "X3",0),Add Factor

(Continuous,{-1,1}, "X4",0),Add Factor

(Continuous,{-1,1}, "X5",0),Make Design

}

);

I don't see an obvious way to get the contents of the design choices from the Screening designer, so that you can see what each number design is.

-Jeff

-Jeff

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Re: DOE Scripting 2: How to set up a full/fractional factorial design

Thanks a lot! That does the trick for the full factorials.

Is there any documentation on the different designs? How would I do the same thing for fractional factorials, etc? How do I select a fractional design of a specific resolution? Usually I'm good at figuring this kind of stuff out on my own, but I couldn't find any documentation on that.

Kind regards,

Sebastian