Package: logcumulant
Type: Package
Title: Goodness-of-Fit Tests and Diagrams Based on Mellin Log-Cumulants
Version: 0.1.0
Authors@R: person("Raydonal", "Ospina", role = c("aut", "cre"),
                  email = "raydonal@de.ufpe.br",
                  comment = c(ORCID = "0000-0002-9884-9090"))
Description: A family of three complementary goodness-of-fit tests
        based on an adaptation of Hotelling's T-squared statistic
        applied to vectors of sample log-cumulants (Mellin statistics)
        for positive-support reliability data. The package provides the
        asymptotic chi-squared reference and parametric bootstrap
        p-values for reliable finite-sample inference, covering the
        Weibull, Frechet, Gamma, Inverse-Gamma, Log-Normal, and
        Log-Logistic families. It also provides three diagnostic
        diagrams (log-cumulant, kurtosis-skewness, and
        coefficient-of-variation) with bootstrap concentration
        ellipses, in the spirit of moment-ratio diagrams. Methods are
        described in Santos, Ospina, Espinheira and Oliveira (2025).
License: GPL-3
Encoding: UTF-8
LazyData: true
Depends: R (>= 4.0)
Imports: Rcpp, MASS, VGAM, actuar, numDeriv, goftest, ggplot2,
        gridExtra
LinkingTo: Rcpp, RcppArmadillo
Suggests: knitr, rmarkdown, testthat (>= 3.0.0)
VignetteBuilder: knitr
URL: https://github.com/raydonal/logcumulant,
        https://raydonal.github.io/logcumulant/
BugReports: https://github.com/raydonal/logcumulant/issues
Roxygen: list(markdown = FALSE)
Config/roxygen2/version: 8.0.0
Repository: https://raydonal.r-universe.dev
Date/Publication: 2026-07-02 18:26:12 UTC
RemoteUrl: https://github.com/raydonal/logcumulant
RemoteRef: HEAD
RemoteSha: 9a737ea4c25f822714c5359c74f24ef31a9b5b99
NeedsCompilation: yes
Packaged: 2026-09-22 10:47:07 UTC; root
Author: Raydonal Ospina [aut, cre] (ORCID:
    <https://orcid.org/0000-0002-9884-9090>)
Maintainer: Raydonal Ospina <raydonal@de.ufpe.br>