Fig_3.tif (1.77 MB)
Correlations among the first three PCA axes (“pca1”, “pca2”, and “pca3”).
figure
posted on 2015-03-11, 03:42 authored by Alan A. Cohen, Emmanuel Milot, Qing Li, Patrick Bergeron, Roxane Poirier, Francis Dusseault-Bélanger, Tamàs Fülöp, Maxime Leroux, Véronique Legault, E. Jeffrey Metter, Linda P. Fried, Luigi FerrucciCorrelations were calculated from the full merged 43-variable data set or from each of the separate data sets (WHAS: w; InCHIANTI: i; BLSA: b). The loadings from each subset-based PCA are reapplied to the full data set to calculate the scores used in the correlations. Ellipses below the diagonal indicate correlations visually: blue when positive, red when negative, and darker and narrower when stronger. Correlation coefficients are above the diagonal.
