[{'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:# Heatmap of correlations features\ncorrMatrix=df_full[["Sales", "DayOfWeek", "Open", "Promo", "SchoolHoliday", "CompetitionDistance",\n                    "CompetitionOpenSinceMonth", "CompetitionOpenSinceYear", "Promo2",\n                    "Promo2SinceWeek", "Promo2SinceYear", "Year", "Month", "Day",\n                    "CompetitionOpen", "PromoOpen", "IsPromoMonth", "Store"]].corr()\n\nsns.set(font_scale=1.10)\nplt.figure(figsize=(30, 30))\n\nsns.heatmap(corrMatrix, vmax=.8, linewidths=0.01,\n            square=True,annot=True,cmap=\'viridis\',linecolor="white")\nplt.title(\'Correlation between features\')\''}, {'role': 'assistant', 'content': 'result_visualization'}]