Learn R Programming

COMPoissonReg (version 0.8.2)

Conway-Maxwell Poisson (COM-Poisson) Regression

Description

Fit Conway-Maxwell Poisson (COM-Poisson or CMP) regression models to count data (Sellers & Shmueli, 2010) . The package provides functions for model estimation, dispersion testing, and diagnostics. Zero-inflated CMP regression (Sellers & Raim, 2016) is also supported.

Copy Link

Version

Install

install.packages('COMPoissonReg')

Monthly Downloads

663

Version

0.8.2

License

GPL-2 | GPL-3

Issues

Pull Requests

Stars

Forks

Repository

https://github.com/lotze/COMPoissonReg

Maintainer

Andrew Raim

Last Published

July 22nd, 2026

Functions in COMPoissonReg (0.8.2)

Estimate for dispersion parameter

COMPoissonReg-package

Estimate parameters for COM-Poisson regression

Construct a control object to pass additional arguments to a number of functions in the package.

ZICMP Distribution

ZICMP Distribution

Construct an object that specifies which indices of coefficients should remain fixed in maximum likelihood computation.

Equidispersion Test

get.modelmatrix

Construct model matrices and offsets for CMP/ZICMP regression

Construct initial values for coefficients.

COM-Poisson and Zero-Inflated COM-Poisson Regression

get.offset.zero

Construct zero values for offsets.

glm.cmp, CMP support

Supporting Functions for COM-Poisson Regression

glm.cmp, ZICMP support

Supporting Functions for ZICMP Regression

Raw Interface to COM-Poisson and Zero-Inflated COM-Poisson Regression

Construct values for offsets.

parametric.bootstrap

Parametric Bootstrap

Freight dataset

CMP Distribution

COM-Poisson Distribution

ZIP Distribution

COM-Poisson Distribution

Construct initial values for coefficients with zeros.

Standard deviation