FIG. 2.

Model of Abraham and Martins of the PSFT training and validation set data with MF = HBAcc (the number of hydrogen bond acceptors). r² = 0.73, adj. r² = 0.73, $q_{\text{LOO}}^{\text{2}}=0.73$, $q_{\text{L25\%}}^{\text{2}}=0.72$, and $q_{\text{EXT}}^{\text{2}}=0.61$.