[{'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 read_data(col_name):\nstudent_data = []\nwith open('students.rtf') as fp:\ncolumns = fp.readline().strip().split(' ')\nfor line in fp:\nline_data = line.strip().split(' ')\nline_data_numeric = [float(x) for x in line_data]\nstudent_data.append(line_data_numeric)\nstudent_data = np.array(student_data)\ncol_index = columns.index(col_name)\nX = student_data[:,col_index]\nY = student_data[:,-1]\nreturn (X,Y)"}, {'role': 'assistant', 'content': 'load_data'}]