cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
  • Sign-in to the JMP Community will be unavailable intermittently Dec. 6-7 due to a system update. Thank you for your understanding!
  • We’re retiring the File Exchange at the end of this year. The JMP Marketplace is now your destination for add-ins and extensions.
  • JMP 19 is here! Learn more about the new features.

Discussions

Solve problems, and share tips and tricks with other JMP users.
Choose Language Hide Translation Bar
Lcheng
Level II

Fit Model - Effect Summary - no PValues?

Question: Why are there no LogWorth and PValues showing up in my Effect Summary section after I Fit Model an output with several inputs & second degree inputs (Factorial to Degree 2)? 

 

Context: 

Everything is continuous except 1 nominal dataset. I first did 6 singular outputs. it gave me some results so I could use that to eliminate the 2 at the end. 

Lcheng_0-1623461317384.png

But then I tried adding 2nd order inputs and: 

Lcheng_1-1623461368116.png

Am I doing something wrong here or interpreting it wrong? 

 

1 REPLY 1

Re: Fit Model - Effect Summary - no PValues?

Not all of the details of your model are provided, but in the second case I see a "Singularity Details" message. That is the cause of your lack of PValues. You have an over-specified model, meaning the collected data is not sufficient to estimate all of the model terms. In mathematical terms you have a matrix that cannot be inverted.

Dan Obermiller

Recommended Articles