Use a cube plot to see the factors and combination of settings used in your design. Optionally, you can add a mean response at each setting.

A building materials manufacturer is developing a new insulation product for construction. They would like to study four factors that are believed to impact the strength (Strength) of the insulation. The four factors are

·    material type (Material)

·    injection temperature (InjTemp)

·    injection pressure (InjPress)

·    cooling temperature (CoolTemp)

They also recorded the temperature at the time of the strength measurement (MeasTemp), which is included as a covariate in the model.

Data: Insulation2.MTW (available in the Sample Data folder).