R Observatory: Metrics for FitVerse version 1.0-2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

FitVerse

1.0-2Package record

Parametric Distribution Fitting and Analysis

0packages depend

1.8Kdownloads / year

19.4%test coverage

13/13flavors OK

Overview

About

Maintained by Karuna G. ReddyCRAN page ↗

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).

Install

R (CRAN)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("FitVerse", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-fitverse

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-FitVerse

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-FitVerse

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 26.6 min · r-oldrel-macos-x86_64

Status changes

OK13 OKNow
OK7 OK2026-09-02

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.0-2

READMENoVignettesYes · 1 · evaluation depends on the environmentNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 22includes a package overview page
Examples that run: 64%14 run in a plain check (1 of them under a condition) · 8 only when donttest examples are enabled (R CMD check --as-cran)
Exported functions with examples: 100%
Documented parameters: 92%
Return-value docs: 100%
Help pages citing references: 32%

Vignettes (1)

FitVerse: Parametric Distribution Fitting and Analysis

How these are measured

Downloads

1.8K

CRAN downloads in the past year

Rank #4,615 · ~5/day · ~151/mo

Releases R versions

Daily download trend is not available in this view yet.

1.2K30 days

1.8K90 days

1.8K1 year

Compare downloads with other packages →

Also on12 r2u

How downloads are counted

Dependencies

Declared dependencies

21 external dependencies (excludes base and recommended)

Installing FitVerse adds 35 packages (18 with compiled code, 28 MB of source tarballs). Heaviest: ggplot2 6.0 MB, fitdistrplus 2.4 MB, mc2d 2.1 MB.

Depends (1)

R >= 4.1.0

Imports (14)

statsgraphicsgrDevicesutilstoolsactuar mc2d evd sn fitdistrplus lmomco ggplot2 goftest (>= 1.2.3)gridExtra

LinkingTo (0)

none

Suggests (13)

shiny bslib DT plotly testthat knitr rmarkdown kableExtra jsonlite base64encMASSGeneralizedHyperbolic truncnorm

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

Datasets

People & History

People (2)

Karuna G. Reddy

Author, Maintainer since 1.0-1 (2026)

M. G. M. Khan

Author

Releases (2)

Pick two releases to compare their code metrics.

1.0-2Latest
record
2026-09-06 · current release · diff ↗
1.0-1
record
2026-09-01
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-09-01
Total releases: 2 / 1 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 4.1.0
Download size: 1.0 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("FitVerse")

Format

Reddy, K. G., & Khan, M. G. M. (2026). FitVerse: Parametric Distribution Fitting and Analysis (Version 1.0-2) [Computer software]. https://doi.org/10.32614/CRAN.package.FitVerse

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for FitVerse version 1.0-2 [Data set]. HJJB, LLC. Data release v2026-10-22. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-22, which the citation names so these numbers can be found later. More on citing and the projects behind them.

Report a problem with this page →