[ X_train,X_cv,X_test, y_train,y_cv,y_test ] = data4cv.get_data_for_hold_out_cross_validation(); % saveas(original_fig, sprintf( './%s/img_num_%d_a_original.jpeg ...

[ X_train,X_cv,X_test, y_train,y_cv,y_test ] = data4cv.get_data_for_hold_out_cross_validation(); ...