grDevices, graphics, stats, celestial (>= 1.4.1), MASS,
plotrix, sm, mapproj, RColorBrewer

"Finding Groups in Data": Cluster Analysis Extended Rousseeuw et
al.

Methods for Cluster analysis.  Much extended the original from
	Peter Rousseeuw, Anja Struyf and Mia Hubert,
	based on Kaufman and Rousseeuw (1990) "Finding Groups in Data".

c(person("Martin","Maechler", role = c("aut","cre"),
	   email="maechler@stat.math.ethz.ch", comment = c(ORCID = "0000-0002-8685-9910"))
 ,person("Peter", "Rousseeuw", role="aut", email="peter.rousseeuw@kuleuven.be",
         comment = c("Fortran original", ORCID = "0000-0002-3807-5353"))
 ,person("Anja", "Struyf", role="aut", comment= "S original")
 ,person("Mia", "Hubert", role="aut", email= "Mia.Hubert@uia.ua.ac.be",
         comment = c("S original", ORCID = "0000-0001-6398-4850"))
 ,person("Kurt", "Hornik", role=c("trl", "ctb"),
         email="Kurt.Hornik@R-project.org",
         comment=c("port to R; maintenance(1999-2000)", ORCID="0000-0003-4198-9911"))
 ,person("Matthias", "Studer", role="ctb")
 ,person("Pierre", "Roudier", role="ctb")
 ,person("Juan",   "Gonzalez", role="ctb")
 ,person("Kamil",  "Kozlowski", role="ctb")
 ,person("Erich",  "Schubert", role="ctb", comment = c("fastpam options for pam()",
                                                       ORCID = "0000-0001-9143-4880"))
 ,person("Keefe",  "Murphy", role="ctb", comment = "volume.ellipsoid({d >= 3})")
 )

MASS: two examples using cov.rob() and mvrnorm(); Matrix
tools for testing

Martin Maechler [aut, cre] (<https://orcid.org/0000-0002-8685-9910>),
  Peter Rousseeuw [aut] (Fortran original,
    <https://orcid.org/0000-0002-3807-5353>),
  Anja Struyf [aut] (S original),
  Mia Hubert [aut] (S original, <https://orcid.org/0000-0001-6398-4850>),
  Kurt Hornik [trl, ctb] (port to R; maintenance(1999-2000),
    <https://orcid.org/0000-0003-4198-9911>),
  Matthias Studer [ctb],
  Pierre Roudier [ctb],
  Juan Gonzalez [ctb],
  Kamil Kozlowski [ctb],
  Erich Schubert [ctb] (fastpam options for pam(),
    <https://orcid.org/0000-0001-9143-4880>),
  Keefe Murphy [ctb] (volume.ellipsoid({d >= 3}))