[{'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:'''\nEstablish a connection to the db in a terminal:\nssh -L 54320:myrna.p8:5432 les67@p8portal.phys.washington.edu\n'''\n%matplotlib inline\nimport numpy as np\nimport h5py\nimport matplotlib.pyplot as plt\nimport matplotlib.lines as mlines\nimport matplotlib.patches as mpatches\nfrom scipy import optimize\nfrom sklearn import linear_model, svm\nimport P8RunParamsDB\nimport KatydidHDF5IO\nimport P8MiscAnalysis as ana\nflag_save_fig = False"}, {'role': 'assistant', 'content': 'helper_functions'}]