Efficient
Emulators of Computer Experiments Using Compactly Supported
Correlation Functions

This is the R code to carry out the examples
in the paper of the above title by myself, Derek Bingam, et
al. The main code is stored in an (as yet) undocumented R
package, to aid in loading external Fortran code. To see
the main functions, install the package and try the code in
SparseEmExample.R. If you want to go “under the
hood,” have a look at the file SparseEmFunctions.R,
which contains all my comments for functions in the
package.

SparseEm_0.2-2.tar.gz

SparseEmExample.R

SparseEmFunctions.R

Bayesian Functional ANOVA Modelling Using Gaussian Process
Priors

This is the R code to carry out the examples
in the paper of the above title by myself and Stephan Sain.
Each zipped file contains both data and code. Please read
the README files for instructions.

Canadian temperature example

Regional climate models
example

Estimating Spatial Covariance Parameters in Precipitation
Anomalies Using Covariance Tapering

R code and data for the example in Kaufman,
Schervish, and Nychka (2008) is archived here.

R Package
‘sphere’

The sphere package is object-oriented code for working with
objects consisting of observations on the sphere, ie., unit
vectors in 3D. There are functions for manipulating these
objects, plotting projections, and some basic statistical
analyses. Here's a representative plot, showing some
spherical data (point locations represent orientation and
color the associated data value) and a smoothed surface.

Download package

Example file

Last updated August, 2011.