5.

Algorithm 1 　Leave-one-out cross test with XGBoost
1: for i in test_patients_indexes do
2: LeaveOneOutPatient= (X, y)[i]
3: other-patients: (X, y)\LeaveOneOutPatient
4: XGBoost.fit (other_patients, validation_split=0.2)
5: for record in LeaveOneOutPatient do
6: 　pred=XGBoost.predict (X[record])
7: 　pred=smooth(pred)
8: 　Confusion_matrix (y[record], pred)
9: end for
10: end for