smacof: Multidimensional Scaling

Implements the following approaches for multidimensional scaling (MDS) based on stress minimization using majorization (smacof): ratio/interval/ordinal/spline MDS on symmetric dissimilarity matrices, MDS with external constraints on the configuration, individual differences scaling (idioscal, indscal), MDS with spherical restrictions, and ratio/interval/ordinal/spline unfolding (circular restrictions, row-conditional). Various tools and extensions like jackknife MDS, bootstrap MDS, permutation tests, MDS biplots, gravity models, unidimensional scaling, drift vectors (asymmetric MDS), classical scaling, and Procrustes are implemented as well.

Version: 2.0-0
Depends: R (≥ 3.2.0), plotrix
Imports: graphics, stats, polynom, Hmisc, colorspace, nnls, grDevices, MASS, weights, ellipse, wordcloud, candisc, parallel, foreach, doParallel
Suggests: knitr, prefmod, MPsychoR, calibrate
Published: 2019-06-06
Author: Patrick Mair [aut, cre], Jan De Leeuw [aut], Patrick J. F. Groenen [aut], Ingwer Borg [ctb]
Maintainer: Patrick Mair <mair at>
License: GPL-3
NeedsCompilation: yes
Citation: smacof citation info
Materials: NEWS
In views: Psychometrics
CRAN checks: smacof results


Reference manual: smacof.pdf
Vignettes: SMACOF2 Package Vignette
Package source: smacof_2.0-0.tar.gz
Windows binaries: r-devel:, r-devel-gcc8:, r-release:, r-oldrel:
OS X binaries: r-release: smacof_2.0-0.tgz, r-oldrel: smacof_2.0-0.tgz
Old sources: smacof archive

Reverse dependencies:

Reverse depends: cops, FreeSortR, mdsOpt
Reverse imports: AnthropMMD, asymmetry, MDSMap, networktools, thectar
Reverse suggests: dyndimred, vegclust


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