gkwreg: Generalized Kumaraswamy Regression Models for Bounded Data

Implements regression models for bounded continuous data in the open interval (0,1) using the five-parameter Generalized 'Kumaraswamy' distribution. Supports modeling all distribution parameters (alpha, beta, gamma, delta, lambda) as functions of predictors through various link functions. Provides efficient maximum likelihood estimation via Template Model Builder ('TMB'), offering comprehensive diagnostics, model comparison tools, and simulation methods. Particularly useful for analyzing proportions, rates, indices, and other bounded response data with complex distributional features not adequately captured by simpler models.

Version: 2.1.14
Depends: R (≥ 3.5)
Imports: Formula, stats, graphics, TMB, Rcpp, magrittr, ggplot2, ggpubr, gridExtra, numDeriv, gkwdist
LinkingTo: TMB, Rcpp, RcppArmadillo, RcppEigen
Suggests: betareg, knitr, rmarkdown, testthat (≥ 3.0.0)
Published: 2026-01-09
DOI: 10.32614/CRAN.package.gkwreg
Author: José Evandeilton Lopes ORCID iD [aut, cre]
Maintainer: José Evandeilton Lopes <evandeilton at gmail.com>
BugReports: https://github.com/evandeilton/gkwreg/issues
License: MIT + file LICENSE
URL: https://github.com/evandeilton/gkwreg, https://evandeilton.github.io/gkwreg/
NeedsCompilation: yes
Materials: README, NEWS
CRAN checks: gkwreg results

Documentation:

Reference manual: gkwreg.html , gkwreg.pdf
Vignettes: Beyond Beta Regression (source, R code)

Downloads:

Package source: gkwreg_2.1.14.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-release (arm64): gkwreg_2.1.14.tgz, r-oldrel (arm64): gkwreg_2.1.14.tgz, r-release (x86_64): gkwreg_2.1.14.tgz, r-oldrel (x86_64): gkwreg_2.1.14.tgz
Old sources: gkwreg archive

Linking:

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