[{'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:component_names = []\npca_df_t = pca_df.T\nfor col in pca_df_t:\ncomponent = pca_df_t[col]\norder = component.abs().order(ascending=False)\ntop = order.head(3)\ncomponent_name = [name if component[name] > 0 else ('neg-' + name) for name in top.index]\ncomponent_names.append('/'.join(component_name))"}, {'role': 'assistant', 'content': 'data_exploration'}]