"Finding Groups in Data": Cluster Analysis Extended Rousseeuw et al. R package cluster version 2.1.8.3 CRAN Task View: Cluster (https://CRAN.R-project.org/view=Cluster) CRAN Task View: Environmetrics (https://CRAN.R-project.org/view=Environmetrics) CRAN Task View: Robust (https://CRAN.R-project.org/view=Robust) 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". Software Depends: R (>= 3.5.0) Imports: graphics, grDevices, stats, utils Suggests: MASS, Matrix Enhances: mvoutlier, fpc, ellipse, sfsmisc Martin Maechler <maechler@stat.math.ethz.ch> Comprehensive R Archive Network (CRAN) Martin Maechler [aut, cre] (ORCID: <https://orcid.org/0000-0002-8685-9910>), Peter Rousseeuw [aut] (Fortran original, ORCID: <https://orcid.org/0000-0002-3807-5353>), Anja Struyf [aut] (S original), Mia Hubert [aut] (S original, ORCID: <https://orcid.org/0000-0001-6398-4850>), Kurt Hornik [trl, ctb] (port to R; maintenance(1999-2000), ORCID: <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(), ORCID: <https://orcid.org/0000-0001-9143-4880>), Keefe Murphy [ctb] (volume.ellipsoid({d >= 3})) GPL (>= 2) 2026-07-30 application/tgz https://CRAN.R-project.org/package=cluster doi:10.32614/CRAN.package.cluster