{"metadata":{"kernelspec":{"display_name":"Python 3","language":"python","name":"python3"},"language_info":{"name":"python","version":"3.11.13","mimetype":"text/x-python","codemirror_mode":{"name":"ipython","version":3},"pygments_lexer":"ipython3","nbconvert_exporter":"python","file_extension":".py"},"kaggle":{"accelerator":"none","dataSources":[{"sourceId":20270,"databundleVersionId":1222630,"sourceType":"competition"},{"sourceId":25383,"databundleVersionId":2684322,"sourceType":"competition"}],"dockerImageVersionId":31153,"isInternetEnabled":true,"language":"python","sourceType":"notebook","isGpuEnabled":false},"papermill":{"default_parameters":{},"duration":11.91491,"end_time":"2025-10-05T05:57:15.842277","environment_variables":{},"exception":null,"input_path":"__notebook__.ipynb","output_path":"__notebook__.ipynb","parameters":{},"start_time":"2025-10-05T05:57:03.927367","version":"2.3.3"}},"nbformat_minor":4,"nbformat":4,"cells":[{"id":"142e136d","cell_type":"code","source":"import numpy as np\nimport pandas as pd\n\nfrom sklearn import datasets\nfrom sklearn import model_selection","metadata":{"_cell_guid":"b1076dfc-b9ad-4769-8c92-a6c4dae69d19","_uuid":"8f2839f25d086af736a60e9eeb907d3b93b6e0e5","execution":{"iopub.status.busy":"2025-10-11T18:08:50.274678Z","iopub.execute_input":"2025-10-11T18:08:50.274960Z","iopub.status.idle":"2025-10-11T18:08:50.279312Z","shell.execute_reply.started":"2025-10-11T18:08:50.274938Z","shell.execute_reply":"2025-10-11T18:08:50.278527Z"},"papermill":{"duration":1.292644,"end_time":"2025-10-05T05:57:13.743589","exception":false,"start_time":"2025-10-05T05:57:12.450945","status":"completed"},"tags":[],"trusted":true},"outputs":[],"execution_count":null},{"id":"0133ce70","cell_type":"code","source":"df = pd.read_csv(\"/kaggle/input/siim-isic-melanoma-classification/train.csv\")\ndf.head()","metadata":{"execution":{"iopub.status.busy":"2025-10-11T18:08:50.280565Z","iopub.execute_input":"2025-10-11T18:08:50.280790Z","iopub.status.idle":"2025-10-11T18:08:50.372231Z","shell.execute_reply.started":"2025-10-11T18:08:50.280773Z","shell.execute_reply":"2025-10-11T18:08:50.371519Z"},"papermill":{"duration":0.11432,"end_time":"2025-10-05T05:57:13.863203","exception":false,"start_time":"2025-10-05T05:57:13.748883","status":"completed"},"tags":[],"trusted":true},"outputs":[],"execution_count":null},{"id":"4d624ddb","cell_type":"code","source":"def create_folds(data, num_splits):\n    data[\"kfold\"] = -1\n    num_bins = int(np.floor(1 + np.log2(len(data))))\n    print('num_bins: ',num_bins)\n\n    data.loc[:, \"bins\"] = pd.cut(data[\"target\"], bins=num_bins, labels=False)\n\n    kf = model_selection.StratifiedKFold(n_splits=num_splits, shuffle=True, random_state=42)\n    \n    for f, (t_, v_) in enumerate(kf.split(X=data, y=data.bins.values)):\n        data.loc[v_, 'kfold'] = f\n#     print(data.head())\n    data = data.drop(\"bins\", axis=1)\n\n    return data","metadata":{"execution":{"iopub.status.busy":"2025-10-11T18:08:50.373338Z","iopub.execute_input":"2025-10-11T18:08:50.373652Z","iopub.status.idle":"2025-10-11T18:08:50.379393Z","shell.execute_reply.started":"2025-10-11T18:08:50.373625Z","shell.execute_reply":"2025-10-11T18:08:50.378684Z"},"papermill":{"duration":0.015301,"end_time":"2025-10-05T05:57:13.884213","exception":false,"start_time":"2025-10-05T05:57:13.868912","status":"completed"},"tags":[],"trusted":true},"outputs":[],"execution_count":null},{"id":"0b6cf207","cell_type":"code","source":"df = pd.read_csv(\"/kaggle/input/siim-isic-melanoma-classification/train.csv\")\n\ndf_5 = create_folds(df, num_splits=5)\ndf_10 = create_folds(df, num_splits=10)\n\ndf.head()","metadata":{"execution":{"iopub.status.busy":"2025-10-11T18:08:50.380171Z","iopub.execute_input":"2025-10-11T18:08:50.380443Z","iopub.status.idle":"2025-10-11T18:08:50.487235Z","shell.execute_reply.started":"2025-10-11T18:08:50.380420Z","shell.execute_reply":"2025-10-11T18:08:50.486563Z"},"papermill":{"duration":0.133179,"end_time":"2025-10-05T05:57:14.022787","exception":false,"start_time":"2025-10-05T05:57:13.889608","status":"completed"},"tags":[],"trusted":true},"outputs":[],"execution_count":null},{"id":"20d2a687","cell_type":"code","source":"df_5.to_csv(\"train_5folds.csv\", index=False)\ndf_10.to_csv(\"train_10folds.csv\", index=False)","metadata":{"execution":{"iopub.status.busy":"2025-10-11T18:08:50.488589Z","iopub.execute_input":"2025-10-11T18:08:50.488823Z","iopub.status.idle":"2025-10-11T18:08:50.745026Z","shell.execute_reply.started":"2025-10-11T18:08:50.488806Z","shell.execute_reply":"2025-10-11T18:08:50.743896Z"},"papermill":{"duration":0.246079,"end_time":"2025-10-05T05:57:14.275034","exception":false,"start_time":"2025-10-05T05:57:14.028955","status":"completed"},"tags":[],"trusted":true},"outputs":[],"execution_count":null},{"id":"c94b48e6","cell_type":"code","source":"","metadata":{"papermill":{"duration":0.005758,"end_time":"2025-10-05T05:57:14.286928","exception":false,"start_time":"2025-10-05T05:57:14.281170","status":"completed"},"tags":[],"trusted":true},"outputs":[],"execution_count":null}]}