Figure 2.

P value heat map by paired t test on all the combinations of prediction models. The P value for each comparison of the mean absolute error for predictive performance on (A) the internal validation data set (B) and the external validation data set. 300MLP: 300-layer multilayer perceptron; JointMLP: joint multilayer perceptron; PPK: population pharmacokinetic; XGB: extreme gradient boosting.