{ "_id": "6a1d34de1d7bb097a0a3c955", "Package": "smacof", "Type": "Package", "Title": "Multidimensional Scaling", "Version": "2.1-7", "Date": "2024-10-09", "Authors@R": "c(person(\"Patrick\", \"Mair\", role = c(\"aut\", \"cre\"), email = \"mair@fas.harvard.edu\"), person(\"Jan\", \"De Leeuw\", role = \"aut\"), person(\"Patrick J. F.\", \"Groenen\", role = \"aut\"), person(\"Ingwer\", \"Borg\", role = \"ctb\"))", "Description": "Implements the following approaches for multidimensional\nscaling (MDS) based on stress minimization using majorization\n(smacof): ratio/interval/ordinal/spline MDS on symmetric\ndissimilarity matrices, MDS with external constraints on the\nconfiguration, individual differences scaling (idioscal,\nindscal), MDS with spherical restrictions, and\nratio/interval/ordinal/spline unfolding (circular restrictions,\nrow-conditional). Various tools and extensions like jackknife\nMDS, bootstrap MDS, permutation tests, MDS biplots, gravity\nmodels, unidimensional scaling, drift vectors (asymmetric MDS),\nclassical scaling, and Procrustes are implemented as well.", "License": "GPL-3", "VignetteBuilder": "knitr", "LazyData": "yes", "LazyLoad": "yes", "ByteCompile": "yes", "NeedsCompilation": "yes", "Packaged": { "Date": "2026-06-01 07:10:36 UTC", "User": "root" }, "Author": "Patrick Mair [aut, cre], Jan De Leeuw [aut], Patrick J. 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