[{'role': 'system', 'content': "You are an expert in machine learning and your task is to classify the code snippets into categories from the provided list of categories. List of categories: ['helper_functions', 'load_data', 'data_exploration', 'data_preprocessing', 'evaluation', 'modelling', 'prediction', 'result_visualization', 'save_results', 'comment_only']"}, {'role': 'user', 'content': 'Identify to which category the provided code belongs and assign the code snippet to at least 1 but up to 5 categories based on the probabilities, ignore if the probability of the category is negligible. Strictly provide your response as a list. Avoid providing any additional information, commentary, or personal opinions.\\nPython Code:procs = [FillMissing, Categorify, Normalize]\ndep_var = \'Sales\'\n#cont_names,cat_names= cont_cat_split(sample_train,dep_var="Sales")\ncont_names=[\n \'CompetitionDistance\',\n \'Week\',\n \'Day\',\n \'Dayofyear\',\n \'Elapsed\',\n \'ratio-sales-customer\',\n \'ratio-saturday-week\',\n \'ratio-sunday-week\',\n \'ratio-promo-nopromo\',\n \'Promo_thisweek\',\n \'Open_thisweek\',\n \'StateHolidayBool_thisweek\',\n \'SchoolHoliday_thisweek\',\n \'Promo_prevweek\',\n \'Open_prevweek\',\n \'StateHolidayBool_prevweek\',\n \'SchoolHoliday_prevweek\',\n \'Promo_nextweek\',\n \'Open_nextweek\',\n \'StateHolidayBool_nextweek\',\n \'SchoolHoliday_nextweek\',\n \'Promo2Days\',\n \'CompetitionDaysOpen\',\n \'trend\',\n \'trend_DE\',\n \'Max_Humidity\',\n \'Max_Wind_SpeedKm_h\',\n \'Mean_Humidity\',\n \'Mean_TemperatureC\',\n \'Max_TemperatureC_chnage\',\n \'Month_Sales_mean\',\n \'Year_Sales_mean\',\n \'Dayofweek_Sales_mean\',\n \'Dayofweek_promo_Sales_mean\',\n \'BeforeSchoolHoliday\',\n \'AfterSchoolHoliday\',\n \'BeforeClosed\',\n \'AfterClosed\',\n \'BeforePromo\',\n \'AfterPromo\',\n \'BeforeStateHolidayBool\',\n \'AfterStateHolidayBool\',\n \'Promo2ActiveMonthBool\',\n \'BeforePromo2ActiveMonthBool\',\n \'AfterPromo2ActiveMonthBool\',\n \'SchoolHoliday_fw\',\n \'StateHolidayBool_fw\',\n \'Promo_fw\',\n \'Closed_fw\',\n \'Promo2ActiveMonthBool_fw\',\n    \'CompetitionOpenSince\', \'Promo2Since\'\n]\ncat_names=[\n  \'Store\',  \n  \'DayOfWeek\',\n \'Open\',\n \'Promo\',\n \'StateHoliday\',\n \'SchoolHoliday\',\n \'StoreType\',\n \'Assortment\',\n \'Promo2\',\n \'PromoInterval\',\n \'Year\',\n \'Month\',\n \'Dayofweek\',\n \'Is_month_end\',\n \'Is_month_start\',\n \'Is_quarter_end\',\n \'Is_quarter_start\',\n \'Is_year_end\',\n \'Is_year_start\',\n \'Promo2SinceYear\',\n \'Promo2Na\',\n \'Events\',\n\'Fog\',\n \'Hail\',\n \'Rain\',\n \'Snow\',\n \'Thunderstorm\',\n \'Quarter\',\n \'CompetitionOpenNA\',\n \'CompetitionDistanceNA\',\n \'CompetitionOpenSinceYear\',\n  \'State\'\n]\n\''}, {'role': 'assistant', 'content': "['data_preprocessing']"}]