rotatable
fun rotatableAxialSpacing(numFactors: Int, fraction: Int = 0, numFactorialReps: Int = 1, numAxialReps: Int = 1): Double
Computes the axial spacing for a rotatable design based on page 470 of Box et al. (2005) "Response Surfaces Mixtures and Ridge Analysis" Wiley.
Return
the axial spacing in coded units for the design. The axial spacing must be greater than 0.0. The user is responsible for selecting an appropriate axial spacing value that determines the quality of the design.
Parameters
num
the factors for the design
num
the number of replications at each point in the factorial design. The default is 1.
num
the number of replications for the axial points in the factorial design. The default is 1.