Modeling and Multivariate Methods - SAS

Chapter 24 Visualizing, Optimizing, and Simulating Response Surfaces 589
Mixture Profiler
Figure 24.38 Feasible Region Enlarged
The manufacturer wants to maximize Y1, minimize Y2 and have Y3 at 4.5.
• Use the slider controls or Contour edit boxes for Y1 Predicted to maximize the red contour within the
feasible region. Keep in mind the Up Dots show direction of increasing predicted response.
• Use the slider controls or Contour edit boxes for Y2 Predicted to minimize the green contour within
the unshaded region.
• Enter 4.5 in the Contour edit box for Y3 Predicted to bring the blue contour to the target value.
The resulting three contours don’t all intersect at one spot, so you will have to compromise. Position the
three-way crosshairs in the middle of the contours to understand the factor levels that produce those
response values.