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An Empirical Model for Underdispersed Count Data

0packages depend
2.3Kdownloads / year
46.8%test coverage
13/13flavors OK

Overview

About

Count regression models for underdispersed small counts (lambda < 20) based on the three-parameter exponentially weighted Poisson distribution of Ridout & Besbeas (2004) DOI:10.1191/1471082X04st064oa.

Changes in 0.1.2
  • Added a mmean function to estimate covariate effects on the mean.
  • Added capability to use user-specified starting values in ewp_reg function.

From NEWS.md in the release

Install

Health

CRAN checks
13OK
Slowest check: 3.1 min · r-devel-windows-x86_64
Status changes
  • OK13 OK2026-08-05
  • NOTE12 OK, 1 NOTE2026-08-01
  • OK14 OK2026-04-22
  • ERROR13 OK, 1 ERROR2026-04-18
  • OK14 OK2026-03-10
Advisories

none known

Documentation

In release 0.1.2
READMEYes · 303 wordsVignettesNoNEWSYes · 100% structured · mentions 0.1.2Citation fileNoWebsitenot declared in DESCRIPTION
Help pages
15
Examples that run
no examples
Exported functions with examples
0%
Documented parameters
97%
Return-value docs
100%
Help pages citing references
0%

Downloads

2.3K
CRAN downloads in the past year
Rank #21,175 · ~6/day · ~193/mo
Daily download trend is not available in this view yet.
22230 days
63290 days
2.3K1 year
Compare downloads with other packages →
Also on345 r2u8 autocran

Dependencies

Declared dependencies
7 external dependencies (excludes base and recommended)

Installing ewp adds 3 packages (2 with compiled code, 17 MB of source tarballs). Heaviest: BH 14 MB, Rcpp 1.8 MB, mvtnorm 1.0 MB.

Depends (1)
R >= 2.10
Imports (2)
LinkingTo (2)
Suggests (3)
Enhances (0)
none
Reverse dependencies
0direct
0indirect

Nothing depends on this yet.

Datasets

People & History

People (2)
Author, Maintainer since 0.1.1 (2024)
Releases (2)

Pick two releases to compare their code metrics.

  • R
    R 4.6.0 released · 2026-04-24
  • 0.1.2Latest
    record
    2025-04-22 · current release · diff ↗ ·
    added 1 export
    mmean
  • R
    R 4.5.0 released · 2025-04-11
  • 0.1.1
    record
    2024-06-26
  • R
    R 4.4.0 released · 2024-04-24

Package metadata

First published
2024-06-26
Total releases
2 / 2 yrs
License
MIT + file LICENSE OSI
Minimum R
≥ 2.10
Bundled data
82 KB / 1 file
Download size
136 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("ewp")
Boersch-Supan, P., & Clarke, J. (2025). ewp: An Empirical Model for Underdispersed Count Data (Version 0.1.2) [Computer software]. https://doi.org/10.32614/CRAN.package.ewp

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 ewp version 0.1.2 [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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