1、 save using pickle
      with open('F:/BrainAging/result/ordered_data_final_just_TD_leaveOne.pickle', 'wb') as f:
      pk.dump(ordered_data_final, f)

     load using pickle
      with open('F:/BrainAging/result/ordered_data_final_just_TD_leaveOne.pickle', 'rb') as f:
      b = pk.load(f)