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smacof 1.2-0

Patrick Mair - 2011-05-12 07:04 - PsychoR

A smacof update is available on R-forge. It includes jackknife and permutation tests for MDS.

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smacof 0.9-0 submitted to CRAN

Patrick Mair - 2008-05-25 21:29 - PsychoR

smacof provides the following approaches of multidimensional scaling (MDS) based on stress minimization by means of majorization: Simple smacof on symmetric dissimilarity matrices, smacof for rectangular matrices (unfolding models), smacof with constraints on the configuration, three-way smacof for individual differences (including constraints for idioscal, indscal, and identity), and spherical smacof (primal and dual algorithm). Each of these approaches is implemented in a metric and nonmetric manner including primary, secondary, and tertiary approaches for tie handling. Package vignette is included.

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homals, anacor, smacof

Patrick Mair - 2008-04-04 21:04 - PsychoR

New versions of homals and anacor are available on CRAN. Vignettes are included. A first smacof beta version for multidimensional scaling (MDS) is available on R-forge.

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PsychoR multiple package

Patrick Mair - 2008-02-02 14:31 - PsychoR

PsychoR is now provided as a multiple package project. So far it includes homals for Gifi-models and anacor for correspondence analysis. Both are already available on CRAN. In addition, a first beta version of smacof is checked in which will be completed soon.

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homals 0.9-3 available

Patrick Mair - 2007-11-04 12:40 - PsychoR

Homals 0.9-3 is on R-forge and soon on CRAN:

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homals 0.9-0 on CRAN

Patrick Mair - 2007-10-26 18:36 - PsychoR

This package implements the methods discussed in Gifi, Nonlinear Multivariate

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