[{'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:X_train = data_pre.drop(\'SalePrice\',1).copy()\nY_train= data_pre[\'SalePrice\'].copy()\nT_train_xgb = xgb.DMatrix(X_train, Y_train)\nparams = {"objective": "reg:linear"}\ngbm = xgb.train(dtrain=T_train_xgb,params=params)\nY_pred = gbm.predict(xgb.DMatrix(test_kaggle_pre))'}, {'role': 'assistant', 'content': "['modelling', 'prediction']"}]