Additional file 6: Figure S4. Confusion matrix for out-of-sample data prediction of evolutionary lineage: African lineage (A), Central and Eastern European lineage (C), Western and Northern European lineage, and Near East and Central Asian lineage (O). Each row of the matrix represents the true class (lineage), while each column represents the predicted class based on the highest prediction probability. The resulting percentages compare a list of expected values with a list of predictions from the model.