[{'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:lon_map = lon[i_lon]; lat_map = lat[i_lat];\nlonlim=np.array([-10,16]);\nlatlim=np.array([35,60]);\nproj_txt='cyl'      # Equidistant cyclindrical\nlon_map, lat_map = np.meshgrid(lon_map, lat_map)\nsite_color = np.float64([0,0,0])/255\nfontdict = {'fontsize': 18}\nif np.size(ghd_all_names)<=9:\nnumrow=3\nnumcol=3\nfigdims=20\nelif np.size(ghd_all_names)>=10:\nnumrow=4\nnumcol=3\nfigdims=30"}, {'role': 'assistant', 'content': 'data_preprocessing'}]