Figure 4. The validation results of the ρ (T ,P ,I )-model: (a-b) the scatter plots of experimental vs. calculated values for LOCO-CV and LOAO-CV, respectively, (c) the external validation, (d) the results for the absolute error distributions diagram of the training set, LOCO-CV and LOAO-CV, respectively.
Table 2 . The detailed results of internal and external validations for density.