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smacof 1.2-0
A smacof update is available on R-forge. It includes jackknife and permutation tests for MDS.
smacof 0.9-0 submitted to CRAN
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.
homals, anacor, smacof
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.
PsychoR multiple package
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.
homals 0.9-3 available
Homals 0.9-3 is on R-forge and soon on CRAN:
homals 0.9-0 on CRAN
This package implements the methods discussed in Gifi, Nonlinear Multivariate
