| OptimaRegion-package | OptimaRegion |
| CRcompare | Computes bootstrapped confidence intervals for the distance between two response surface optima |
| Drug | Mixture-amount experiment |
| OptRegionQuad | Computes Confidence Regions of Optima of Quadratic Polynomial Models |
| OptRegionTps | Computes Confidence Regions of Optima of Thin Plate Spline Models |
| plotConvexHull | Computes and displays the convex hull of a set of 2-dimensional points |