Package: FitVerse
Type: Package
Title: Parametric Distribution Fitting and Analysis
Version: 1.0-2
Date: 2026-09-06
Authors@R: c(
    person("Karuna G.", "Reddy",
           email   = "karuna.reddy@auckland.ac.nz",
           role    = c("aut", "cre"),
           comment = c(ORCID = "0000-0002-9467-4668")),
    person("M. G. M.", "Khan",
           email   = "mgm.khan@usp.ac.fj",
           role    = "aut")
  )
Description: Provides a unified, user-friendly interface for fitting parametric
    probability distributions to continuous univariate data. 'FitVerse' supports
    52 distribution families spanning symmetric, right-skewed, heavy-tailed,
    bounded, and extreme-value shapes, and three estimation methods: Maximum
    Likelihood Estimation (MLE), Method of Moments (MOM), and L-Moments (L-MOM).
    Automatic best-fit selection is performed using AIC, BIC, and goodness-of-fit
    tests (Kolmogorov-Smirnov, Anderson-Darling, Cramer-von Mises (CvM)). Every
    fitted model produces a publication-quality diagnostic plot: a histogram
    overlaid with the fitted density curve and the estimated PDF formula annotated
    directly on the figure. An optional interactive version is produced via
    'plotly'. Additional tools include bootstrap confidence intervals for parameter
    estimates and return levels, batch fitting across multiple columns for
    automated workflows and web-upload use cases, JSON serialisation for
    integration with 'Shiny' web applications, and automated HTML/PDF report
    generation. 'FitVerse' is designed to support data characterisation in
    survey sampling, hydrology, and actuarial workflows, where identifying
    the underlying distribution of a variable is a prerequisite for
    downstream modelling and inference.
    L-moment estimation follows Hosking (1990) <doi:10.1111/j.2517-6161.1990.tb01775.x>
    and Hosking and Wallis (1997, ISBN:9780521430456).
    Model selection via AIC follows Akaike (1974) <doi:10.1109/TAC.1974.1100705>
    and via BIC follows Schwarz (1978) <doi:10.1214/aos/1176344136>.
    Bootstrap confidence intervals follow Efron and Hastie (2016,
    ISBN:9781107149892).
License: GPL (>= 3)
Encoding: UTF-8
Depends: R (>= 4.1.0)
Imports: stats, graphics, grDevices, utils, tools, actuar (>= 3.1.0),
        mc2d (>= 0.1.18), evd (>= 2.3.3), sn (>= 2.1.0), fitdistrplus
        (>= 1.1.0), lmomco (>= 2.3.7), ggplot2 (>= 3.4.0), goftest (>=
        1.2.3), gridExtra (>= 2.3)
Suggests: shiny (>= 1.7.0), bslib (>= 0.5.0), DT, plotly (>= 4.10.0),
        testthat (>= 3.0.0), knitr (>= 1.40), rmarkdown (>= 2.20),
        kableExtra, jsonlite (>= 1.8.0), base64enc, MASS,
        GeneralizedHyperbolic, truncnorm
VignetteBuilder: knitr
RoxygenNote: 7.3.2
NeedsCompilation: no
Packaged: 2026-09-06 10:55:39 UTC; karunareddy
Author: Karuna G. Reddy [aut, cre] (ORCID:
    <https://orcid.org/0000-0002-9467-4668>),
  M. G. M. Khan [aut]
Maintainer: Karuna G. Reddy <karuna.reddy@auckland.ac.nz>
Repository: CRAN
Date/Publication: 2026-09-06 22:40:14 UTC
Built: R 4.5.3; ; 2026-09-06 23:53:15 UTC; windows
