[{'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:def move_centroids(dataset, centroids):\nfor i in range(num_clusters):\ncentroids[i, :] = (dataset[np.where(dataset[:, 2] == i)].mean(axis=0))\nreturn centroids\nplt.scatter(points[:, 0], points[:, 1], color=ci)\nplt.scatter(centroids[:, 0], centroids[:, 1], color='black', s=40, marker='s')\ncentroids = move_centroids(points, centroids)\nplt.scatter(centroids[:, 0], centroids[:, 1], color='b', s=40, marker='s')"}, {'role': 'assistant', 'content': 'modelling'}]