Multivariate Tools for Compositional Data Analysis

Provides functions for multivariate analysis with compositional data. Includes a function for doing compositional canonical correlation analysis. This analysis requires two data matrices of compositions, which can be adequately transformed and used as entries in a specialized program for canonical correlation analysis, that is able to deal with singular covariance matrices. The methodology is described in Graffelman et al. (2017) . A function for log-ratio principal component analysis with condition number computations has been added to the package.


Reference manual

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1.0.5 by Jan Graffelman, 10 months ago,

Browse source code at

Authors: Jan Graffelman <[email protected]>

Documentation:   PDF Manual  

GPL (>= 2) license

Depends on MASS, calibrate, robCompositions

See at CRAN