Gifi Methods for Optimal Scaling

Performs a homogeneity analysis (multiple correspondence analysis) and various extensions. Rank restrictions on the category quantifications can be imposed (nonlinear PCA). The categories are transformed by means of optimal scaling with options for nominal, ordinal, and numerical scale levels (for rank-1 restrictions). Variables can be grouped into sets, in order to emulate regression analysis and canonical correlation analysis.


Reference manual

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1.0-8 by Patrick Mair, 2 years ago

Browse source code at

Authors: Patrick Mair [aut, cre] , Jan De Leeuw [aut]

Documentation:   PDF Manual  

Task views: Chemometrics and Computational Physics, Multivariate Statistics, Psychometric Models and Methods

GPL license

Imports graphics, stats, rgl, ape, scatterplot3d, grDevices

Depended on by ForImp.

See at CRAN