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Definitive screening design blocking

Hi All,

 

  I have some colleagues that are considering running a definitive screening design for a pilot plant production scale run, and have asked for my help in creating a DOE for them.

 

  The pilot plant runs on a day/night shift fashion. What I'm curious about is if it's possible to get JMP to for the output DOE table to alternate runs in a day/night fashion. I can block or add a categorical factor in there to represent the day/night shifts, but I can't get JMP to force the output table to alternate based on that column. I can always do it manually with a script or via a column formula, but wondering if there is already some built-in method to do this.

 

Thanks!,

DS

Re: Definitive screening design blocking

What version of JMP are you using?

 

You could create an indicator column separate from the design and use a sort to achieve the order that you want.

 

I used JMP 14 and the blocking option in DSD platform. I created a DSD for 5 continuous factors. (I know, not really a screening situation.) Here is the result without blocking:

 

 

Then I decided to create 4 blocks for 2 shifts over 2 days. I want to be able to estimate the potential quadratic terms. Here is the result:

 

 

Here it is the same design with the Randomize within Blocks option selected:

 

 

Is this example not what you are trying to do?