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COMPoissonReg

0.8.2Package record

Conway-Maxwell Poisson (COM-Poisson) Regression

4packages dependsuggested by 1
7.8Kdownloads / year
6.7%test coverage
13/13flavors OK

Overview

About

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.

Changes in 0.8.2
  • Added NEWS.md file to log changes to the package.
  • Update Roxygen comments to address CRAN check NOTES.

From NEWS.md in the release

Install

Health

CRAN checks
13OK
Slowest check: 7.0 min · r-devel-windows-x86_64
Status changes
  • OK13 OK2026-08-05
  • NOTE12 OK, 1 NOTE2026-08-01
  • OK13 OK2026-07-25
  • NOTE11 OK, 2 NOTE2026-07-23
  • ERROR10 OK, 2 NOTE, 1 ERROR2026-07-16
Show 2 earlier changesHide 2 earlier changes
  • NOTE10 OK, 2 NOTE2026-04-25
  • ERROR11 OK, 2 NOTE, 1 ERROR2026-03-10
Advisories

none known

Documentation

In release 0.8.2
README· In the repository, left out of the releaseVignettesYes · 1 · dynamicNEWSYes · 67% structured · mentions 0.8.2Citation fileNoWebsitenot declared in DESCRIPTION
Help pages
22includes a package overview page
Examples that run
no examples
Exported functions with examples
0%
Documented parameters
99%
Return-value docs
100%
Help pages citing references
27%
Vignettes (1)

Downloads

7.8K
CRAN downloads in the past year
Rank #4,299 · ~21/day · ~649/mo
Daily download trend is not available in this view yet.
70530 days
2K90 days
7.8K1 year
Compare downloads with other packages →
Also on481 r2u17 autocran

Repository

10Stars
5Forks
2Open issues
1Open PRs
0Releases
176Commits
6Commit identities
License file reads as GPL-2.0 · 176 commits · Last activity 2026-07-22
Responsiveness
How these are sampled
PRs merged (all time)
100%
Median days to close, 50 most recently updated closed issues
20
Median days to close, 50 most recently updated closed PRs
0

Issues over time

2026-07-14 · 22026-07-23 · 2
PracticesBeta

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

Checks run against github.com/lotze/compoissonreg on 2026-10-21.

Lint, format, editor (1)
RStudio project
How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies
8 external dependencies (excludes base and recommended)

Installing COMPoissonReg adds 2 packages (1 with compiled code, 1.9 MB of source tarballs). Heaviest: Rcpp 1.8 MB, numDeriv 74 KB.

Depends (0)
none
Imports (3)
LinkingTo (1)
Enhances (0)
none
Reverse dependencies
4direct
0indirect
Imports 4
Suggested by 1
Depends, Imports or LinkingTo, most downloaded first
Suggests, most downloaded first

Datasets

People & History

People (3)
Maintainer, Author · added in 0.8.2
Author · added in 0.3.2

Maintainer since 0.4.0 (2017), previously Thomas Lotze (0.1.1 to 0.3.5)

Listed in earlier versions (1)
Kimberly Sellers Thomas Lotze Andrew Raim
no longer listed · 0.4.0 to 0.8.1
Releases (14)

Pick two releases to compare their code metrics.

  • 0.8.2Latest
    record
    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
    record
    2023-11-29 · diff ↗
  • R
    R 4.3.0 released · 2023-04-21
  • 0.8.0
    record
    2022-12-02 · diff ↗ ·
    added 21 exports
    dzip, ecmp, ezicmp, ezip, get.control, get.fixed, get.init, get.init.zero, get.modelmatrix, get.offset, get.offset.zero, glm.cmp.raw, glm.zicmp.raw, ncmp, pzip, qzip, rzip, tcmp, vcmp, vzicmp, vzip
  • 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
    record
    2019-11-30 · diff ↗ ·
    removed 1 export
    parametric_bootstrap
    added 1 export
    parametric.bootstrap
  • R
    R 3.6.0 released · 2019-04-26
  • 0.6.1
    record
    2018-12-09 · diff ↗
  • 0.6.0
    record
    2018-12-02 · diff ↗
  • R
    R 3.5.0 released · 2018-04-23
  • 0.4.1
    record
    2017-05-03 · diff ↗
Show 17 earlier eventsHide 17 earlier events
  • R
    R 3.4.0 released · 2017-04-21
  • 0.4.0
    record
    2017-04-19 · diff ↗ ·
    removed 12 exports
    cmp, chisq, pval, chisq.cmp, parametric_bootstrap.cmp, nu.cmp, sdev.cmp, pval.cmp, leverage.cmp, deviance.cmp, predict.cmp, residuals.cmp
    added 10 exports
    equitest, glm.cmp, dcmp, rcmp, pcmp, qcmp, rzicmp, dzicmp, pzicmp, qzicmp
  • R
    R 3.3.0 released · 2016-05-03
  • 0.3.5
    record
    2015-07-11 · diff ↗ ·
    removed 10 exports
    CMP.MSE, CMPParamBoot, CMPStdErrors, ComputeBetasAndNuHat, ComputeBetasAndlogNuHat, constantCMPfitsandresids, CMPDeviance, CMPLeverage, LRT, makeCMPdata
  • 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
    record
    2011-05-11 · diff ↗
  • 0.3.3
    record
    2011-04-28 · diff ↗
  • R
    R 2.13.0 released · 2011-04-13
  • 0.3.2
    record
    2011-02-10 · diff ↗ ·
    removed 1 export
    ComputeBetasAndlogNuHat
    added 16 exports
    cmp, chisq, pval, chisq.cmp, sdev, nu, parametric_bootstrap, parametric_bootstrap.cmp, nu.cmp, sdev.cmp, pval.cmp, leverage.cmp, deviance.cmp, predict.cmp, residuals.cmp, CMPLeverage
  • 0.2.1
    record
    2011-01-28 · diff ↗ ·
    added 1 export
    ComputeBetasAndlogNuHat
  • R
    R 2.12.0 released · 2010-10-15
  • 0.1.1
    record
    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

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 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.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for COMPoissonReg version 0.8.2 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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