Figure 3.

Distribution of GO annotation terms between the training and testing sets in the four cross-validation samples. Each point on a graph represents the percentage of proteins annotated with a given GO term in the training set (x-axis), and the percentage of proteins annotated with the same GO term in the testing set (y-axis). All four plots were fitted with linear regression lines, with high R² values of 0.998. This indicates an equal distribution of the GO terms between the training and testing sets of the four samples.