mixexp-package

This package contains functions for creating designs for mixture experiments and making graphical display of results of mixture experiments.

The mixexp package provides functions for creating mixture experiment designs in an unconstrained simplex or constrained mixture space. Functions are also provided for making ternary contour plots, pictures of constrained regions, design points, and mixture effect plots. package

Details

Package:	mixexp
Type:	Package
Version:	1.2-1
Date:	2011-05-31
License:	GPL2.0
Dependencies: gdata, lattice, grid
LazyLoad:	yes
Packaged:	2011-05-31 19:54:07 UTC; Lawson
Built:	R 2.12.1; i386-pc-mingw32; 2011-05-31 19:54:08 UTC; windows

Index:

conmx                   example constraint matrix used as input to function 
                   crvtave
crvtave                 function for creating extreme vertices designs and 
                   centroids; this function calls Eflags, Nrows, and Vertcen
DesignPoints            function for plotting design points and or mixture 
                   constraint in the simplex
Eflags                  function for calling Piepel''s fortran code cnvrt 
                   to create extreme vertices designs and prints any 
                                                                   error messages
Effplot                 function for making mixture effect plots given a design
MixturePlot             function for making contour plots in simplex region given a design
MixModel                function for fitting mixture models to data
ModelPlot               function for making contour plots of an equation in an lm object 
                   created by the lm function or the MixModel function
Nrows                   function for calling Piepel's fortran code cnvrt to 
                   create extreme vertices designs and returns the 
                                                                   number of rows in the resulting design
SCD                     function for creating Simplex Centroid Designs
SLD                     function for creating Simplex Lattice Designs
Vertcen                 function for calling Piepel's fortran code cnvrt 
                   to create extreme vertices designs and returns the 
                                                                   resulting design
Xvert                   function for creating extreme vertices design 
                   and centroids, this function calls crvtave

Author(s)

John Lawson lawson@byu.edu and Cameron Willden ccwillden@gmail.com

Maintainer: John Lawson lawson@byu.edu

References

1. "John Lawson, Cameron Willden (2016).", "Mixture Experiments in R Using mixexp.", "Journal of Statistical Software, Code Snippets, 72(2), 1-20.", "doi:10.18637/jss.v072.c02"