R Observatory: Metrics for QAEnsemble version 1.0.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

QAEnsemble

1.0.0Package record

Ensemble Quadratic and Affine Invariant Markov Chain Monte Carlo

0packages depend

2Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Weston RodaCRAN page ↗Declared funders: Canada's Drug Agency and Children's Hospital of Eastern Ontario

The Ensemble Quadratic and Affine Invariant Markov chain Monte Carlo algorithms provide an efficient way to perform Bayesian inference in difficult parameter space geometries. The Ensemble Quadratic Monte Carlo algorithm was developed by Militzer (2023) doi:10.3847/1538-4357/ace1f1. The Ensemble Affine Invariant algorithm was developed by Goodman and Weare (2010) doi:10.2140/camcos.2010.5.65 and it was implemented in Python by Foreman-Mackey et al (2013) doi:10.48550/arXiv.1202.3665. The Quadratic Monte Carlo method was shown to perform better than the Affine Invariant method in the paper by Militzer (2023) doi:10.3847/1538-4357/ace1f1 and the Quadratic Monte Carlo method is the default method used. The Chen-Shao Highest Posterior Density Estimation algorithm is used for obtaining credible intervals and the potential scale reduction factor diagnostic is used for checking the convergence of the chains.

Changes in 1.0.0

Initial CRAN submission.

From NEWS.md in the release

Install

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

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

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

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-qaensemble

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-QAEnsemble

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-QAEnsemble

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: 17.9 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-09-08
ERROR12 OK, 1 ERROR2026-09-07
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 1.0.0

READMEYes · 359 wordsVignettesYes · 3 · dynamicNEWSYes · 67% structured · mentions 1.0.0Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 3
Examples that run: 100%3 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 100%

Vignettes (3)

How these are measured

Downloads

2K

CRAN downloads in the past year

Rank #23,174 · ~5/day · ~163/mo

Releases R versions

Daily download trend is not available in this view yet.

20630 days

56790 days

2K1 year

Compare downloads with other packages →

Also on68 r2u3 autocran

How downloads are counted

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Installing QAEnsemble adds no packages beyond those that come with R.

Depends (0)

none

Imports (1)

stats

LinkingTo (0)

none

Suggests (6)

coda diagram expm knitr rmarkdown svMisc

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (7)

Weston Roda

Author, Maintainer since 1.0.0 (2025)

Diepreye Ayabina

Author

Karsten Hempel

Author

Sasha van Katwyk

Author

Institute of Health Economics

Copyright holder

Canada's Drug Agency

Funder

Children's Hospital of Eastern Ontario

Funder

Releases (1)

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
1.0.0Latest
record
2025-01-09 · current release
R
R 4.4.0 released · 2024-04-24

Package metadata

First published: 2025-01-09
Total releases: 1 / 1 yrs
License: GPL (>= 2) OSI
Download size: 258 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("QAEnsemble")

Format

Roda, W., Canada's Drug Agency, Children's Hospital of Eastern Ontario, Institute of Health Economics, Ayabina, D., Hempel, K., & van Katwyk, S. (2025). QAEnsemble: Ensemble Quadratic and Affine Invariant Markov Chain Monte Carlo (Version 1.0.0) [Computer software]. https://doi.org/10.32614/CRAN.package.QAEnsemble

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

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 QAEnsemble version 1.0.0 [Data set]. HJJB, LLC. Data release v2026-10-24. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-24, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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