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COMPoissonReg

0.8.2

Conway-Maxwell Poisson (COM-Poisson) Regression

4packages depend
8.7Kdownloads / year
6.7%test coverage
13/13checks 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

Health

CRAN checks
13OK
Slowest check: 7.1 min · r-devel-windows-x86_64
Code health
Yes
Tests · ratio 0.09
6.7%
Coverage · measured lines
100%
Documentation · exports
3
Dependencies · direct
Check history
  • OK2026-08-05
    13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • NOTE2026-08-01
    12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • OK2026-07-25
    13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • 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
Show 2 earlier snapshots
  • 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
READMENoVignettesNopkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo
Examples that run
not tracked
Documented parameters
99%
Return-value docs
100%
References docs
27%

Downloads

8.7K
CRAN downloads in the past year
Rank #4,364 · ~24/day · ~723/mo
Daily download trend is not available in this view yet.
65730 days
1.8K90 days
8.7K1 year
Compare downloads with other packages →
Also on503 r2u30 autocran

Repository

Repository
10Stars
5Forks
2Open issues
1Open PRs
0Releases
176Commits
6Contributors
License GPL-2.0 · 176 commits · Last activity 2026-07-22

Issues over time

2026-07-14 · 22026-07-23 · 2

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 2026-08-16.

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)
LinkingTo (1)
Enhances (0)
none
Reverse dependencies
4direct
0indirect

Code & Tests

Datasets

People & History

People (3)
Maintainer (1)
Maintainer, Author · added in 0.8.2
Authors (3)
Maintainer, Author · added in 0.8.2
Author · added in 0.3.2
Listed in earlier versions (1)
Package Timeline

14 releases. Pick two to compare their code metrics. 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
Bundled data
1.5 KB / 2 files
Download size
419 KB
Installed size
not tracked yet
With dependencies
not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("COMPoissonReg")
Raim, A., Lotze, T., & Sellers, K. (2026). COMPoissonReg: Conway-Maxwell Poisson (COM-Poisson) Regression (Version 0.8.2) [Computer software]. https://doi.org/10.32614/CRAN.package.COMPoissonReg

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

Cite the R Observatory

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

APA

Balamuta, J. J. (2026). R Observatory: Metrics for COMPoissonReg version 0.8.2 [Data set]. HJJB, LLC. Data release v2026-08-22. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-22, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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