[{'role': 'system', 'content': "You are an expert in machine learning and your task is to classify code snippets into one of the following categories: ['helper_functions', 'load_data', 'data_exploration', 'data_preprocessing', 'evaluation', 'modelling', 'prediction', 'result_visualization', 'save_results', 'comment_only']."}, {'role': 'user', 'content': 'Identify the single most appropriate category to which the provided code belongs. Provide your response as a single category label without any additional information, commentary, or personal opinions.\\nPython Code:# #Normalizing\n\n# no = 1\n\n# X["PRI_jet_all_pt"]=((X["PRI_jet_all_pt"]-X["PRI_jet_all_pt"].min())/(X["PRI_jet_all_pt"].max()-X["PRI_jet_all_pt"].min()))*no\n# X_test["PRI_jet_all_pt"]=((X_test["PRI_jet_all_pt"]-X_test["PRI_jet_all_pt"].min())/(X_test["PRI_jet_all_pt"].max()-X_test["DER_mass_MMC"].min()))*no\n\n# X["PRI_jet_subleading_pt"]=((X["PRI_jet_subleading_pt"]-X["PRI_jet_subleading_pt"].min())/(X["PRI_jet_subleading_pt"].max()-X["PRI_jet_subleading_pt"].min()))*no\n# X_test["PRI_jet_subleading_pt"]=((X_test["PRI_jet_subleading_pt"]-X_test["PRI_jet_subleading_pt"].min())/(X_test["PRI_jet_subleading_pt"].max()-X_test["PRI_jet_subleading_pt"].min()))*no\n\n# X["PRI_jet_leading_pt"]=((X["PRI_jet_leading_pt"]-X["PRI_jet_leading_pt"].min())/(X["PRI_jet_leading_pt"].max()-X["PRI_jet_leading_pt"].min()))*no\n# X_test["PRI_jet_leading_pt"]=((X_test["PRI_jet_leading_pt"]-X_test["PRI_jet_leading_pt"].min())/(X_test["PRI_jet_leading_pt"].max()-X_test["PRI_jet_leading_pt"].min()))*no\n\n# X["PRI_met_sumet"]=((X["PRI_met_sumet"]-X["PRI_met_sumet"].min())/(X["PRI_met_sumet"].max()-X["PRI_met_sumet"].min()))*no\n# X_test["PRI_met_sumet"]=((X_test["PRI_met_sumet"]-X_test["PRI_met_sumet"].min())/(X_test["PRI_met_sumet"].max()-X_test["PRI_met_sumet"].min()))*no\n\n# X["DER_sum_pt"]=((X["DER_sum_pt"]-X["DER_sum_pt"].min())/(X["DER_sum_pt"].max()-X["DER_sum_pt"].min()))*no\n# X_test["DER_sum_pt"]=((X_test["DER_sum_pt"]-X_test["DER_sum_pt"].min())/(X_test["DER_sum_pt"].max()-X_test["DER_sum_pt"].min()))*no\n\n# X["DER_mass_jet_jet"]=((X["DER_mass_jet_jet"]-X["DER_mass_jet_jet"].min())/(X["DER_mass_jet_jet"].max()-X["DER_mass_jet_jet"].min()))*no\n# X_test["DER_mass_jet_jet"]=((X_test["DER_mass_jet_jet"]-X_test["DER_mass_jet_jet"].min())/(X_test["DER_mass_jet_jet"].max()-X_test["DER_mass_jet_jet"].min()))*no\n\n# X["DER_pt_h"]=((X["DER_pt_h"]-X["DER_pt_h"].min())/(X["DER_pt_h"].max()-X["DER_pt_h"].min()))*no\n# X_test["DER_pt_h"]=((X_test["DER_pt_h"]-X_test["DER_pt_h"].min())/(X_test["DER_pt_h"].max()-X_test["DER_pt_h"].min()))*no\n\n# X["DER_mass_vis"]=((X["DER_mass_vis"]-X["DER_mass_vis"].min())/(X["DER_mass_vis"].max()-X["DER_mass_vis"].min()))*no\n# X_test["DER_mass_vis"]=((X_test["DER_mass_vis"]-X_test["DER_mass_vis"].min())/(X_test["DER_mass_vis"].max()-X_test["DER_mass_vis"].min()))*no\n\n# X["DER_mass_transverse_met_lep"]=((X["DER_mass_transverse_met_lep"]-X["DER_mass_transverse_met_lep"].min())/(X["DER_mass_transverse_met_lep"].max()-X["DER_mass_transverse_met_lep"].min()))*no\n# X_test["DER_mass_transverse_met_lep"]=((X_test["DER_mass_transverse_met_lep"]-X_test["DER_mass_transverse_met_lep"].min())/(X_test["DER_mass_transverse_met_lep"].max()-X_test["DER_mass_transverse_met_lep"].min()))*no\n\n# X["DER_mass_MMC"]=((X["DER_mass_MMC"]-X["DER_mass_MMC"].min())/(X["DER_mass_MMC"].max()-X["DER_mass_MMC"].min()))*no\n# X_test["DER_mass_MMC"]=((X_test["DER_mass_MMC"]-X_test["DER_mass_MMC"].min())/(X_test["DER_mass_MMC"].max()-X_test["DER_mass_MMC"].min()))*no\n\n\n# X.head()'}, {'role': 'assistant', 'content': 'helper_functions'}]