Whitening and High-Dimensional Canonical Correlation Analysis
Plots of Correlations and Loadings
Compute Explained Variation from Loadings
Perform Canonical Correlation Analysis
Simulate Random Orthogonal Matrix
Whiten Data Matrix
Internal whitening Functions
The whitening Package
Compute Whitening Loadings
Compute Whitening Matrix
Implements the whitening methods (ZCA, PCA, Cholesky, ZCA-cor, and PCA-cor) discussed in Kessy, Lewin, and Strimmer (2018) "Optimal whitening and decorrelation", <doi:10.1080/00031305.2016.1277159>, as well as the whitening approach to canonical correlation analysis allowing negative canonical correlations described in Jendoubi and Strimmer (2019) "A whitening approach to probabilistic canonical correlation analysis for omics data integration", <doi:10.1186/s12859-018-2572-9>. The package also offers functions to simulate random orthogonal matrices, compute (correlation) loadings and explained variation. It also contains four example data sets (extended UCI wine data, TCGA LUSC data, nutrimouse data, extended pitprops data).