[{'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:# Splitting date time data for date account created\ndata_all['dac_year'] = data_all.date_account_created.dt.year\ndata_all['dac_month'] = data_all.date_account_created.dt.month\ndata_all['dac_day'] = data_all.date_account_created.dt.day\n\n# Splitting date time data for time first active\ndata_all['tfa_year'] = data_all.timestamp_first_active.dt.year\ndata_all['tfa_month'] = data_all.timestamp_first_active.dt.month\ndata_all['tfa_day'] = data_all.timestamp_first_active.dt.day\n\ndata_all.drop('date_account_created',1, inplace=True)\ndata_all.drop('timestamp_first_active',1, inplace=True)"}, {'role': 'assistant', 'content': "['data_preprocessing']"}]