[{'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:X_test = np.array([[0.5, 3], [4, 2], [-.5, .5]])\nplt.figure()\nplt.gca().set_aspect("equal")\nplt.scatter(X[:, 0], X[:, 1], c=y)\nplt.scatter(X_test[:, 0], X_test[:, 1], c=\'k\', marker="*")'}, {'role': 'assistant', 'content': 'data_exploration'}]