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- Aliasing of Effects with a foldover design

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Jun 15, 2016 3:17 AM
(3765 views)

Hello,

Here is my problem:

First I create a screening design (7 factors and 8 runs). In the DOE dialog window, I can check the Aliasing of Effects before creating the table.

Then I would like to add more runs. To do that I go to the platform Augment Design and I create a foldover design.

I would like to know what is the aliasing structure of this new design however I do not know where I can find this information.

Could you help me please?

Thanks in advance!

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Jun 15, 2016 10:26 AM
(6599 views)

Anne,

I use the Color Map on correlations and hover over the red boxes to see the alias structure but one can also use the Modeling>Screening platform which delineates the alias. There may be additional ways but I figured I'd share these.

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Jun 15, 2016 7:49 AM
(3667 views)

After you create and save your augmented design then just use the Evaluate Design capability to examine.

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Jun 15, 2016 8:05 AM
(3667 views)

Thank you for your answer Lou Valente.

If I look at the Evaluate Design report, I see the alias matrix which indicates me which interactions are confounded with the main effects.

However I would like to know which two-factor interactions are confounded with other two-factor interactions. How can I get that ?

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Jun 15, 2016 10:26 AM
(6600 views)

Anne,

I use the Color Map on correlations and hover over the red boxes to see the alias structure but one can also use the Modeling>Screening platform which delineates the alias. There may be additional ways but I figured I'd share these.

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Jun 16, 2016 12:05 AM
(3667 views)

That is exactly what I was looking for.

Thanks again Lou Valente.