emulator

1.2-24

Bayesian Emulation of Computer Programs

11packages depend

52.7Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Robin K. S. HankinFirst published 2009-07-1815 releasesCRAN page ↗GitHub ↗

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. The package includes functionality to evaluate quadratic forms efficiently.

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("emulator", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("RobinHankin/emulator")

Development version from RobinHankin/emulator. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-emulator

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-emulator

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-emulator

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 1.4 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 301 wordsVignettesYes · dynamicpkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: not tracked
Return-value docs: not tracked
References docs: 50%

Downloads

52.7K

CRAN downloads in the past year

Rank #2,027 · ~144/day · ~4.4K/mo

Releases R versions

Daily download trend is not available in this view yet.

2.4K30 days

11.3K90 days

52.7K1 year

Compare downloads with other packages →

Also on198 r2u1 autocran993 conda_forge79 c2d4u

Repository

GitHub ↗ robinhankin/emulator

4Stars

0Forks

5Open issues

0Open PRs

0Releases

62Commits

2Contributors

62 commits · Last activity 2025-04-19 · +33.3% stars, 30d

Stars over time

2023-05-04 · 22026-07-07 · 4

Repository practices

Upstream repositoryBeta

3 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/robinhankin/emulator on 2026-07-30.

Continuous integration (1)

GitHub Actions

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Depends (2)

R >= 3.0.1mvtnorm

Imports (0)

none

LinkingTo (0)

none

Suggests (2)

knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

11direct

9indirect

BACCO approximator calibrator BayesianTools RobinCar cmvnorm multivator onion splmm clifford elliptic

Code & Tests

Datasets

People & History

People (1)

Maintainer (1)

Robin K. S. Hankin

Author, Maintainer

Authors (1)

Robin K. S. Hankin

Author, Maintainer

Listed in earlier versions (1)

Hankin

no longer listed · 1.2-20 to 1.2-24

Package Timeline

15 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
1.2-24Latest
2024-03-22 · current release · diff ↗
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
1.2-21
2021-04-25 · diff ↗
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
1.2-20
2019-03-19 · diff ↗
1.2-19
2019-01-15 · diff ↗
1.2-17
2018-05-17 · diff ↗
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03

Show 20 earlier events

R
R 3.2.0 released · 2015-04-16
1.2-15
2014-09-08 · diff ↗
R
R 3.1.0 released · 2014-04-10
1.2-13
2013-12-02 · diff ↗
R
R 3.0.0 released · 2013-04-03
1.2-12
2013-02-11 · diff ↗
R
R 2.15.0 released · 2012-03-30
1.2-9
2011-12-27 · diff ↗
R
R 2.14.0 released · 2011-10-31
1.2-8
2011-08-11 · diff ↗
R
R 2.13.0 released · 2011-04-13
1.2-4
2011-03-18 · diff ↗
1.2-2
2011-03-10 · diff ↗
R
R 2.12.0 released · 2010-10-15
R
R 2.11.0 released · 2010-04-22
1.1-8
2009-10-26 · diff ↗
R
R 2.10.0 released · 2009-10-26
1.1-7
2009-10-15 · diff ↗
1.1-5
2009-07-18
R
R 2.9.0 released · 2009-04-17

Package metadata

First published: 2009-07-18
Total releases: 15 / 17 yrs
License: GPL
Minimum R: ≥ 3.0.1
Bundled data: 15 KB / 3 files
Download size: 212 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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