How do I create 3-way interactions in linear regression?
I'm trying to create a model with a 3-way interaction term. I selected the variables and clicked on "cross" per JMP instructions for 2 or more variables. But JMP gives me the following warning: "The model is missing an effectX1*X2*X2*X1" Which is especially odd since what I entered into the model, and what appears in the dialog box, is:X1X2X3X4X5X1*X2*X3 Any thoughts on how to resolve this?Thanks
stephen_pearson
msharp