[{'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:quant_vars = ['age', 'fnlwgt', 'education_num', 'capital_gain', 'capital_loss', 'hours_per_week']\nfig, ax = plt.subplots(6, 1, figsize=(10, 5))\nfig.subplots_adjust(bottom=1, top=3, hspace=0.5)\nfor i in range(6):\nax[i].hist(data[quant_vars[i]][~np.isnan(data[quant_vars[i]])])\nax[i].set(title=quant_vars[i])\nax[i].yaxis.grid()"}, {'role': 'assistant', 'content': "['data_exploration']"}]