R Observatory: Metrics for emulator version 1.3-0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

emulator

1.3-0Package record

Bayesian Emulation of Computer Programs

9packages dependsuggested by 2

45.1Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Robin K. S. HankinCRAN page ↗GitHub ↗Issues ↗

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. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 1.5 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.3-0

READMEYes · 301 wordsVignettesYes · 1 · dynamicNEWSNoCitation fileYes · cites a publicationWebsitenot declared in DESCRIPTION

Help pages: 23includes a package overview page
Examples that run: 100%22 run in a plain check
Exported functions with examples: 100%
Documented parameters: 20%
Return-value docs: 0%
Help pages citing references: 48%

Vignettes (1)

Emulex: a cookbook for the emulator package PDF

How these are measured

Downloads

45.1K

CRAN downloads in the past year

Rank #2,042 · ~123/day · ~3.8K/mo

Releases R versions

Daily download trend is not available in this view yet.

2.9K30 days

8.9K90 days

45.1K1 year

Compare downloads with other packages →

Also on317 r2u4 autocran822 conda_forge153 c2d4u

How downloads are counted

Repository

robinhankin/emulator ↗Account: RobinHankin

4Stars

0Forks

6Open issues

0Open PRs

0Releases

77Commits

2Commit identities

77 commits · Last activity 2026-09-06 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): not measured
Median days to close, 50 most recently updated closed issues: 4
Median days to close, 50 most recently updated closed PRs: not measured

Stars over time

2025-08-08 · 32026-07-07 · 4

How these are measured

PracticesBeta

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

Checks run against github.com/robinhankin/emulator on 2026-10-11.

Continuous integration (1)

GitHub Actions

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Installing emulator adds 2 packages (1 with compiled code, 1.1 MB of source tarballs). Heaviest: mvtnorm 1.0 MB, quadform 65 KB.

Depends (2)

R >= 3.0.1mvtnorm

Imports (1)

quadform

LinkingTo (0)

none

Suggests (2)

knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

9direct

9indirect

Depends 3 · Imports 6

Suggested by 2

Depends, Imports or LinkingTo, most downloaded first

calibrator BayesianTools approximator BACCO onion RobinCar multivator cmvnorm splmm

Suggests, most downloaded first

elliptic clifford

How these are counted

Code & Tests

Datasets

People & History

People (1)

Robin K. S. Hankin

Author, Maintainer since 1.1-5 (2009)

Listed in earlier versions (1)

Hankin

no longer listed · 1.2-20 to 1.3-0

Releases (16)

Pick two releases to compare their code metrics.

1.3-0Latest
record
2026-09-07 · current release · diff ↗ ·
added 8 exports
quad.form, quad.form.inv, quad3.form, quad.tform, cprod, ht, tcprod, quad.3form
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
1.2-24
record
2024-03-22 · 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
record
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
record
2019-03-19 · diff ↗
1.2-19
record
2019-01-15 · diff ↗
1.2-17
record
2018-05-17 · diff ↗
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21

Show 21 earlier eventsHide 21 earlier events

R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16
1.2-15
record
2014-09-08 · diff ↗
R
R 3.1.0 released · 2014-04-10
1.2-13
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2013-12-02 · diff ↗
R
R 3.0.0 released · 2013-04-03
1.2-12
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2013-02-11 · diff ↗
R
R 2.15.0 released · 2012-03-30
1.2-9
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2011-12-27 · diff ↗
R
R 2.14.0 released · 2011-10-31
1.2-8
record
2011-08-11 · diff ↗
R
R 2.13.0 released · 2011-04-13
1.2-4
record
2011-03-18 · diff ↗
1.2-2
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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
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2009-10-26 · diff ↗
R
R 2.10.0 released · 2009-10-26
1.1-7
record
2009-10-15 · diff ↗
1.1-5
record
2009-07-18
R
R 2.9.0 released · 2009-04-17

Package metadata

First published: 2009-07-18
Total releases: 16 / 17 yrs
License: GPL
Minimum R: ≥ 3.0.1
Bundled data: 15 KB / 3 files
Download size: 207 KB

Cite

Cite this package

Run in R for the authors' entry:

citation("emulator")

The package provides a citation file, so citation() returns the authors' own entry.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for emulator version 1.3-0 [Data set]. HJJB, LLC. Data release v2026-10-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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