emulator

Bayesian Emulation of Computer Programs

Allows one to estimate the output of a computer program, as a function of the input parameters, without actually running it. The computer program is assumed to be a Gaussian process, whose parameters are estimated using Bayesian techniques that give a PDF of expected program output. This PDF is conditional on a training set of runs, each consisting of a point in parameter space and the model output at that point. The emphasis is on complex codes that take weeks or months to run, and that have a large number of undetermined input parameters; many climate prediction models fall into this class. The emulator essentially determines Bayesian posterior estimates of the PDF of the output of a model, conditioned on results from previous runs and a user-specified prior linear model. A vignette is provided and the help pages include examples.

Total

49,344

Last month

1,837

Last week

347

Average per day

61

Daily downloads

Total downloads

Description file content

Package
emulator
Type
Package
Title
Bayesian Emulation of Computer Programs
Version
1.2-20
VignetteBuilder
knitr
Depends
R (>= 3.0.1), mvtnorm
Suggests
knitr
Maintainer
Robin K. S. Hankin
Description
Allows one to estimate the output of a computer program, as a function of the input parameters, without actually running it. The computer program is assumed to be a Gaussian process, whose parameters are estimated using Bayesian techniques that give a PDF of expected program output. This PDF is conditional on a training set of runs, each consisting of a point in parameter space and the model output at that point. The emphasis is on complex codes that take weeks or months to run, and that have a large number of undetermined input parameters; many climate prediction models fall into this class. The emulator essentially determines Bayesian posterior estimates of the PDF of the output of a model, conditioned on results from previous runs and a user-specified prior linear model. A vignette is provided and the help pages include examples.
License
GPL
URL
BugReports
https://github.com/RobinHankin/emulator/issues
NeedsCompilation
no
Packaged
2019-03-19 19:20:27 UTC; rhankin
Author
Robin K. S. Hankin [aut, cre] ()
Repository
CRAN
Date/Publication
2019-03-19 20:30:14 UTC

install.packages('emulator')

1.2-20

2 months ago

https://github.com/RobinHankin/emulator.git

Robin K. S. Hankin

GPL

Depends on

R (>= 3.0.1), mvtnorm

Suggests

knitr

Discussions