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
Config/roxygen2/version: 8.0.0
NeedsCompilation: yes
Packaged: 2026-06-06 15:29:11 UTC; raydonal
Author: Raydonal Ospina [aut, cre] (ORCID:
    <https://orcid.org/0000-0002-9884-9090>)
Maintainer: Raydonal Ospina <raydonal@de.ufpe.br>
Repository: CRAN
Date/Publication: 2026-06-12 11:20:08 UTC
Built: R 4.6.0; aarch64-apple-darwin23; 2026-06-12 15:48:06 UTC; unix
Archs: logcumulant.so.dSYM
