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nomiShape: Visualization and Analysis of Nominal Variable Distributions

Provides tools for visualizing and analyzing the shape of discrete nominal frequency distributions. The package introduces centered frequency plots, in which nominal categories are ordered from the most frequent category at the center toward less frequent categories on both sides, facilitating the detection of distributional patterns such as uniformity, dominance, symmetry, skewness, and long-tail behavior. In addition, the package supports Pareto charts for the study of dominance and cumulative frequency structure in nominal data. The package is designed for exploratory data analysis and statistical teaching, offering visualizations that emphasize distributional form rather than arbitrary category ordering.

Version: 1.0.0
Depends: R (≥ 4.1.0)
Imports: dplyr, ggplot2
Suggests: knitr, rmarkdown, testthat (≥ 3.0.0)
Published: 2026-02-03
DOI: 10.32614/CRAN.package.nomiShape
Author: Norberto Asensio ORCID iD [aut, cre]
Maintainer: Norberto Asensio <norberto.asensio at ehu.eus>
License: MIT + file LICENSE
NeedsCompilation: no
Materials: README, NEWS
CRAN checks: nomiShape results

Documentation:

Reference manual: nomiShape.html , nomiShape.pdf
Vignettes: Using centered_barplot() to Visualize Nominal Distributions (source, R code)
Centered Dot Plots for Nominal Variables (source, R code)
Central Concentration for Nominal Variables (source, R code)
Dominance Index for Nominal Variables (source, R code)
Visualizing and Analyzing Distributions of Nominal Variables (source, R code)
Pareto Plots for Nominal Distributions (source, R code)
Pielou's Evenness for Nominal Variables (source, R code)
Ranked Bar Plots for Nominal Variables (source, R code)
Ranked Dot Plots for Nominal Variables (source, R code)
Shape AIC for Nominal Variables (source, R code)
Shape Comparison Plots for Nominal Variables (source, R code)
Tail Index for Nominal Variables (source, R code)

Downloads:

Package source: nomiShape_1.0.0.tar.gz
Windows binaries: r-devel: nomiShape_1.0.0.zip, r-release: not available, r-oldrel: nomiShape_1.0.0.zip
macOS binaries: r-release (arm64): nomiShape_1.0.0.tgz, r-oldrel (arm64): nomiShape_1.0.0.tgz, r-release (x86_64): nomiShape_1.0.0.tgz, r-oldrel (x86_64): nomiShape_1.0.0.tgz

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.