Vdgraph: Variance dispersion graphs and Fraction of design space plots
for response surface designs
Uses a modification of the published FORTRAN code in "A Computer Program for Generating Variance Dispersion Graphs" by G. Vining, Journal of Quality Technology, Vol. 25 No. 1 January 1993, to produce variance dispersion graphs. Also produces fraction of design space plots, and contains data frames for several minimal run response surface designs.
||John Lawson, with contributions from G. Vining
||John Lawson <lawson at byu.edu>