Central Composite Design - Orthogonal Axial Values
All - I'm creating a Response Surface Design, Central Composite Design for 3 Continuous Factors. If you select Central Composite Design under Design Type, it starts with 16 runs, 2 center points. You can then choose the axial value and the default for the Orthogonal design is an axial value of 1.287. With 2 center points and 2 replicates, this creates an experimental design with 48 runs. However, ...