Package: GeneralizedUmatrix
Type: Package
Title: Credible Visualization for Two-Dimensional Projections of Data
Version: 1.3.1
Date: 2025-01-25
Authors@R: c(person("Michael", "Thrun", email= "m.thrun@gmx.net",role=c("aut","cre","cph"), comment = c(ORCID = "0000-0001-9542-5543")),person("Felix", "Pape",role=c("ctb","ctr")),person("Tim", "Schreier",role=c("ctb","ctr")),person("Luis", "Winckelman",role=c("ctb","ctr")),person("Quirin", "Stier",role=c("ctb","ctr"), comment = c(ORCID = "0000-0002-7896-4737")),person("Alfred", "Ultsch",role="ths"))
Maintainer: Michael Thrun <m.thrun@gmx.net>
Description: Projections are common dimensionality reduction methods,
        which represent high-dimensional data in a two-dimensional
        space. However, when restricting the output space to two
        dimensions, which results in a two dimensional scatter plot
        (projection) of the data, low dimensional similarities do not
        represent high dimensional distances coercively [Thrun, 2018]
        <DOI: 10.1007/978-3-658-20540-9>. This could lead to a
        misleading interpretation of the underlying structures [Thrun,
        2018]. By means of the 3D topographic map the generalized
        Umatrix is able to depict errors of these two-dimensional
        scatter plots. The package is derived from the book of Thrun,
        M.C.: "Projection Based Clustering through Self-Organization
        and Swarm Intelligence" (2018) <DOI:10.1007/978-3-658-20540-9>
        and the main algorithm called simplified self-organizing map
        for dimensionality reduction methods is published in <DOI:
        10.1016/j.mex.2020.101093>.
License: GPL-3
Imports: Rcpp (>= 1.0.8), RcppParallel (>= 5.1.4), ggplot2
Suggests: DataVisualizations, rgl, grid, mgcv, png, reshape2, fields,
        ABCanalysis, plotly, deldir, methods, knitr (>= 1.12),
        rmarkdown (>= 0.9)
LinkingTo: Rcpp, RcppArmadillo, RcppParallel
Depends: R (>= 3.0)
NeedsCompilation: yes
SystemRequirements: GNU make, pandoc (>=1.12.3, needed for vignettes)
LazyLoad: yes
LazyData: TRUE
URL: https://www.deepbionics.org
Encoding: UTF-8
VignetteBuilder: knitr
BugReports: https://github.com/Mthrun/GeneralizedUmatrix/issues
Config/pak/sysreqs: make
Repository: https://mthrun.r-universe.dev
Date/Publication: 2025-01-26 11:48:52 UTC
RemoteUrl: https://github.com/mthrun/generalizedumatrix
RemoteRef: HEAD
RemoteSha: 801f31255e7678c8defbe919e046a8bb33ce0cc5
Packaged: 2026-06-24 05:06:54 UTC; root
Author: Michael Thrun [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0001-9542-5543>),
  Felix Pape [ctb, ctr],
  Tim Schreier [ctb, ctr],
  Luis Winckelman [ctb, ctr],
  Quirin Stier [ctb, ctr] (ORCID:
    <https://orcid.org/0000-0002-7896-4737>),
  Alfred Ultsch [ths]