{"metadata":{"kernelspec":{"language":"python","display_name":"Python 3","name":"python3"},"language_info":{"pygments_lexer":"ipython3","nbconvert_exporter":"python","version":"3.6.4","file_extension":".py","codemirror_mode":{"name":"ipython","version":3},"name":"python","mimetype":"text/x-python"}},"nbformat_minor":4,"nbformat":4,"cells":[{"cell_type":"markdown","source":"To apply **feature selection**, use **train_FS** dataset which you preprocessed in the data transformation stage:\n  \nApply a **wrapper method** using **DecisionTreeRegressor** as the estimator with a 5-fold cross-validation evaluation approach.\n\nSave the result as **X_train_wrapper_fs**.","metadata":{}}]}