I'm trying to set up a mixture design with 6 factors for a formulation. The first 5 factors should add up to exactly 0.5, and the 6th factor is a "dummy" factor that should always be 0.5. When I try to set this up in JMP I am unable to get it to generate a design with these constraints.
I am trying to enforce these constraints by having both:
- 1 * X1 + 1 * X2 + 1 * X3 + 1 * X4 + 1 * X5 + 0 * X6 ≤ 0.5
- 1 * X1 + 1 * X2 + 1 * X3 + 1 * X4 + 1 * X5 + 0 * X6 ≥ 0.5
A couple of things that seem to be happening are:
- JMP is changing my X6 from 0.5 to 0.5, to 0.0 to 0.675
- X6 is not staying at exactly 0.5
- X1 through X6 add up to 1 as expected
What am I missing?
