Borkowski2003           Small Exact D-, A-, G-, and IV-Optimal Designs
VdgRsm                  Plots of Scaled Prediction Variances for
                        Response Surface Designs
cpv                     Cuboidal Prediction Variance
fds.cube                The Fraction of Design Space (FDS) plots for
                        cuboidal-region designs
fds.sphere              The Fraction of Design Space (FDS) plots for
                        spherical-region designs
gen.BBD                 Box-Behnken Designs (BBDs)
gen.CCD                 Central Composite Designs
gen.Factr               Factorial Designs
gen.HSCD                Hartley's Small Composite Designs (HSCDs)
gen.PBCD                Plackett-Burman Composite Designs (Draper and
                        Lin's Method)
gen.Roquemore           Roquemore's Hybrid Designs
gen.USD                 Doehlert's Uniform Shell Designs (USDs)
hyperarcs.vdg           Scaled prediction variance in nested cubes
spv                     Spherical Prediction Variance
spvcontour              Contour Plot of Scaled Prediction Variances
