DOE Augment design - Suggested runs change every time and have non-Integer numbers
Hello, I have done a half-factorial screening with 4 factors, and now would like to augment the design to include the rest of the missing 2-way interactions and axial points to check for quadratics. When I use the DOE -> Augment Design ->Augment-> RSM and 2nd interactions, the number of suggested runs is always 18 (10 previous runs and 8 new runs as the augmented design) , however, the actual run...