vdg: Variance Dispersion Graphs and Fraction of Design Space Plots

Facilities for constructing variance dispersion graphs, fraction- of-design-space plots and similar graphics for exploring the properties of experimental designs. The design region is explored via random sampling, which allows for more flexibility than traditional variance dispersion graphs. A formula interface is leveraged to provide access to complex model formulae. Graphics can be constructed simultaneously for multiple experimental designs and/or multiple model formulae. Instead of using pointwise optimization to find the minimum and maximum scaled prediction variance curves, which can be inaccurate and time consuming, this package uses quantile regression as an alternative.

Author
Pieter Schoonees [aut, cre, cph], Niel le Roux [ctb]
Date of publication
2016-10-18 10:20:56
Maintainer
Pieter Schoonees <schoonees@gmail.com>
License
GPL (>= 2)
Version
1.2.0

View on CRAN

Man pages

GJ54
Design from Goos & Jones
LHS
Latin Hypercube Sampling
meanspv
Compute Mean Spherical SPV
plot.spv
Plot VDGs or FDS plots
print.spv
Print Method for S3 'spv' classes
runif_sphere
Sampling for hyperspheres/hypercubes
sampler
Sampler Function
spv
Calculate the Scaled Prediction Variance (or SPV)
stdrange
Standardize or Unstandarize the Column Range
vdg-package
Variance Dispersion Graphs, Fraction-of-Design-Space Plots...

Files in this package

vdg
vdg/inst
vdg/inst/CITATION
vdg/inst/doc
vdg/inst/doc/vdg.pdf
vdg/inst/doc/vdg.R
vdg/inst/doc/vdg.Rnw
vdg/src
vdg/src/FDS.f
vdg/NAMESPACE
vdg/data
vdg/data/GJ54.rda
vdg/R
vdg/R/plot.spvlist.R
vdg/R/plot.spvlistforlist.R
vdg/R/spv.list.R
vdg/R/plot.spv.R
vdg/R/sampler.R
vdg/R/runif_cube.R
vdg/R/plot.spvforlist.R
vdg/R/meanspv.R
vdg/R/GJ54.R
vdg/R/vdg-package.R
vdg/R/spv.matrix.R
vdg/R/spv.data.frame.R
vdg/R/stdrange.R
vdg/R/print.spvforlist.R
vdg/R/spv.R
vdg/R/print.spvlistforlist.R
vdg/R/LHS.R
vdg/R/print.spv.R
vdg/R/runif_sphere.R
vdg/R/print.spvlist.R
vdg/vignettes
vdg/vignettes/vdg.Rnw
vdg/vignettes/vdg.bib
vdg/MD5
vdg/build
vdg/build/vignette.rds
vdg/build/partial.rdb
vdg/DESCRIPTION
vdg/man
vdg/man/vdg-package.Rd
vdg/man/plot.spv.Rd
vdg/man/print.spv.Rd
vdg/man/GJ54.Rd
vdg/man/LHS.Rd
vdg/man/spv.Rd
vdg/man/stdrange.Rd
vdg/man/sampler.Rd
vdg/man/meanspv.Rd
vdg/man/runif_sphere.Rd