COMPoissonReg

0.8.2

Conway-Maxwell Poisson (COM-Poisson) Regression

4packages depend

8.6Kdownloads / year

6.7%test coverage

12/13checks pass

Overview

About

Maintained by Andrew RaimFirst published 2010-05-2514 releasesCRAN page ↗GitHub ↗

Fit Conway-Maxwell Poisson (COM-Poisson or CMP) regression models to count data (Sellers & Shmueli, 2010) doi:10.1214/09-AOAS306. The package provides functions for model estimation, dispersion testing, and diagnostics. Zero-inflated CMP regression (Sellers & Raim, 2016) doi:10.1016/j.csda.2016.01.007 is also supported.

Install

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

install.packages("COMPoissonReg", 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("lotze/COMPoissonReg")

Development version from lotze/COMPoissonReg. 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-compoissonreg

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

# 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-COMPoissonReg

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

Health

CRAN checks

1NOTE12OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang

Slowest check: 6.0 min · r-devel-windows-x86_64

Check history

NOTE2026-07-23
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-07-16
10 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-04-25
10 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-10
11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE

Documentation

Documentation signals are not tracked yet for this package.

Downloads

8.6K

CRAN downloads in the past year

Rank #5,189 · ~24/day · ~721/mo

COMPoissonReg Releases R versions

Daily download trend is not available in this view yet.

52130 days

1.8K90 days

8.6K1 year

Compare downloads with other packages →

Also on491 r2u25 autocran

Repository

GitHub ↗ lotze/compoissonreg

10Stars

5Forks

2Open issues

1Open PRs

0Releases

165Commits

6Contributors

License GPL-2.0 · 165 commits · Last activity 2026-07-22

Repository practices

Upstream repositoryBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/lotze/compoissonreg on 2026-07-19.

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (3)

statsRcpp numDeriv

LinkingTo (1)

Rcpp

Suggests (5)

testthat knitr quarto rmarkdown ggplot2

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

4direct

0indirect

DGLMExtPois DiscreteDists MLE miRecSurv

Code & Tests

Datasets

People & History

People (3)

Maintainer (1)

Andrew Raim

Maintainer, Author · added in 0.8.2

Authors (3)

Andrew Raim

Maintainer, Author · added in 0.8.2

Thomas Lotze

Author · added in 0.3.2

Kimberly Sellers

Author

Listed in earlier versions (1)

Kimberly Sellers Thomas Lotze <thomas.lotze@thomaslotze.com> Andrew Raim <andrew.raim@gmail.com>

no longer listed · 0.4.0 to 0.8.1

Package Timeline

14 releases. R releases are shown for context.

0.8.2Latest
2026-07-22 · current release · diff ↗
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
0.8.1
2023-11-29 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.8.0
2022-12-02 · diff ↗
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.7.0
2019-11-30 · diff ↗
R
R 3.6.0 released · 2019-04-26
0.6.1
2018-12-09 · diff ↗
0.6.0
2018-12-02 · diff ↗
R
R 3.5.0 released · 2018-04-23
0.4.1
2017-05-03 · diff ↗

Show 17 earlier events

R
R 3.4.0 released · 2017-04-21
0.4.0
2017-04-19 · diff ↗
R
R 3.3.0 released · 2016-05-03
0.3.5
2015-07-11 · diff ↗
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
R
R 3.0.0 released · 2013-04-03
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
0.3.4
2011-05-11 · diff ↗
0.3.3
2011-04-28 · diff ↗
R
R 2.13.0 released · 2011-04-13
0.3.2
2011-02-10 · diff ↗
0.2.1
2011-01-28 · diff ↗
R
R 2.12.0 released · 2010-10-15
0.1.1
2010-05-25
R
R 2.11.0 released · 2010-04-22

Package metadata

First published: 2010-05-25
Total releases: 14 / 16 yrs
License: GPL-2 | GPL-3 OSI
Download size: 547 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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