[{'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:df_train_num = df_train[["count", "temp", "atemp", "casual", "registered", "humidity", "windspeed"]]\n\nfor col in df_train_num:\n    print(\'{:15}\'.format(col), \n          \'Skewness: {:05.2f}\'.format(df_train[col].skew()) , \n          \'   \' ,\n          \'Kurtosis: {:06.2f}\'.format(df_train[col].kurt())  \n         )\n\n#   \''}, {'role': 'assistant', 'content': 'helper_functions'}]