fix

TrainerClass.py

@@ -7,6 +7,7 @@ matplotlib.rcParams['text.usetex'] = True
 
 from sklearn.model_selection import StratifiedGroupKFold, StratifiedShuffleSplit, GridSearchCV
 from sklearn.metrics import mean_squared_error, mean_absolute_error
+from sklearn.preprocessing import MinMaxScaler
 
 from xgboost import XGBRegressor