Package: vcdExtra
Type: Package
Title: 'vcd' Extensions and Additions
Version: 0.9.9
Date: 2026-08-31
Language: en-US
Authors@R: c(
            person(given = "Michael", family = "Friendly", 
                   role=c("aut", "cre"), 
                   email="friendly@yorku.ca",
                   comment = c(ORCID = "0000-0002-3237-0941")),
            person(given = "David", family = "Meyer", 
                   role="ctb",
                   email = "david.meyer@wu.ac.at"),
            person(given = "Achim", family = "Zeileis", 
                   role="ctb",
                   email = "Achim.Zeileis@uibk.ac.at",
                   comment = c(ORCID = "0000-0003-0918-3766")),
            person(given = "Duncan", 
                   family = "Murdoch",
                   email = "murdoch.duncan@gmail.com",
                   role="ctb"),
            person(given = "Heather", family = "Turner", 
                   role="ctb",
                   email = "h.turner.1@warwick.ac.uk",
                   comment = c(ORCID = "0000-0002-1256-3375")),
            person(given = "David", family = "Firth", 
                   role="ctb",
                   email = "d.firth@warwick.ac.uk"),
            person(given = "Daniel", family = "Sabanes Bove",
                   role="ctb",
                   email = "daniel@rconis.com",
                   comment = c(ORCID = "0000-0002-0176-9239")),
            person(given = "Matt", family = "Kumar", role="ctb"),
            person(given = "Shuguang", family = "Sun", role="ctb"),
            person(given = "Gavin", family = "Klorfine", 
                   role = "aut",
                   email = "gklorfin@yorku.ca",
                   comment = c(ORCID = "0009-0003-0395-4512"))
            )
Maintainer: Michael Friendly <friendly@yorku.ca>
Depends: R (>= 4.1.0), vcd, gnm (>= 1.0-3)
Suggests: gmodels, Fahrmeir, effects, VGAM, plyr, lmtest, nnet,
        Sleuth2, car, lattice, stats4, AER, coin, Hmisc, rmarkdown,
        seriation, testthat (>= 3.0.0), tibble, glue, here, purrr,
        readxl, stringr, tidyr (>= 1.3.0), factoextra, rgl, twoway
Imports: MASS, grDevices, grid, stats, utils, dplyr, ca, igraph,
        colorspace, gt, scales, methods, knitr, htmlwidgets, webshot2,
        forcats, rlang, ggplot2 (>= 3.4.0)
Description: Provides additional data sets, methods and documentation
        to complement the 'vcd' package for Visualizing Categorical
        Data and the 'gnm' package for Generalized Nonlinear Models. In
        particular, 'vcdExtra' extends mosaic, assoc and sieve plots
        from 'vcd' to handle 'glm()' and 'gnm()' models and adds a 3D
        version in 'mosaic3d'.  Additionally, methods are provided for
        comparing and visualizing lists of 'glm' and 'loglm' objects.
        This package is now a support package for the book Friendly, M.
        and Meyer, D. (2016, ISBN:978-1-4987-2583-5) 'Discrete Data
        Analysis with R: Visualization and Modeling Techniques for
        Categorical and Count Data'. Recent work adds colorized tables
        of frequencies to highlight patterns of association,
        association graphs to visualize conditional independence and a
        variety of new or improved statistical tests for categorical
        data analysis.
License: GPL (>=2)
URL: https://friendly.github.io/vcdExtra/,
        https://github.com/friendly/vcdExtra
BugReports: https://github.com/friendly/vcdExtra/issues
VignetteBuilder: knitr, rmarkdown
LazyLoad: yes
LazyData: yes
Encoding: UTF-8
Config/testthat/edition: 3
Roxygen: list(markdown = TRUE)
Config/roxygen2/version: 8.1.0
Config/pak/sysreqs: chromium cmake libglpk-dev make libuv1-dev
        libxml2-dev libssl-dev libnode-dev
Repository: https://friendly.r-universe.dev
Date/Publication: 2026-09-24 16:27:37 UTC
RemoteUrl: https://github.com/friendly/vcdExtra
RemoteRef: HEAD
RemoteSha: 9cb6dce8dbc8bc322030833dfbdea8d7b3990e4d
NeedsCompilation: no
Packaged: 2026-09-24 19:51:01 UTC; root
Author: Michael Friendly [aut, cre] (ORCID:
    <https://orcid.org/0000-0002-3237-0941>),
  David Meyer [ctb],
  Achim Zeileis [ctb] (ORCID: <https://orcid.org/0000-0003-0918-3766>),
  Duncan Murdoch [ctb],
  Heather Turner [ctb] (ORCID: <https://orcid.org/0000-0002-1256-3375>),
  David Firth [ctb],
  Daniel Sabanes Bove [ctb] (ORCID:
    <https://orcid.org/0000-0002-0176-9239>),
  Matt Kumar [ctb],
  Shuguang Sun [ctb],
  Gavin Klorfine [aut] (ORCID: <https://orcid.org/0009-0003-0395-4512>)