Figure 11.2.
Variance of four-dimensional energetic profile space explained by principal components. Percentage variance of each principal component (i.e., eigenvalue in Table 11.1) is displayed. Clearly the first principal component accounts for the majority of variance and the first two components account for almost all variance. Therefore, subsequent energetic profiles may be greatly simplified by using only the first component instead of the four thermodynamic quantities ΔG, ΔHapol, ΔHpol, and TΔSconf.