This package provides the following approaches of multidimensional scaling (MDS) based on stress minimization by means of majorization (smacof): 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.
| Version: | 0.9-0 |
| Depends: | R (≥ 2.7.0), polynom, rgl, scatterplot3d |
| Imports: | graphics, stats |
| Date: | 2008-05-24 |
| Author: | Jan de Leeuw, Patrick Mair |
| Maintainer: | Jan de Leeuw <deleeuw at stat.ucla.edu> |
| License: | GPL |
| In views: | Psychometrics |
| CRAN checks: | smacof results |
Downloads:
| Package source: | smacof_0.9-0.tar.gz |
| MacOS X binary: | smacof_0.9-0.tgz |
| Windows binary: | smacof_0.9-0.zip |
| Reference manual: | smacof.pdf |