[{'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:weather_df=pd.get_dummies(train_df['weather'],prefix='weather')\nyr_df=pd.get_dummies(train_df['year'],prefix='year')\nmonth_df=pd.get_dummies(train_df['month'],prefix='month')\nhour_df=pd.get_dummies(train_df['hour'],prefix='hour')\nseason_df=pd.get_dummies(train_df['season'],prefix='season')\ntrain_df=train_df.join(weather_df)\ntrain_df=train_df.join(yr_df)\ntrain_df=train_df.join(month_df)                     \ntrain_df=train_df.join(hour_df)\ntrain_df=train_df.join(season_df)\n                     \nweather_df=pd.get_dummies(test_df['weather'],prefix='weather')\nyr_df=pd.get_dummies(test_df['year'],prefix='year')\nmonth_df=pd.get_dummies(test_df['month'],prefix='month')\nhour_df=pd.get_dummies(test_df['hour'],prefix='hour')\nseason_df=pd.get_dummies(test_df['season'],prefix='season')\ntest_df=test_df.join(weather_df)\ntest_df=test_df.join(yr_df)\ntest_df=test_df.join(month_df)                     \ntest_df=test_df.join(hour_df)\ntest_df=test_df.join(season_df)"}, {'role': 'assistant', 'content': "['data_preprocessing']"}]