004 GitHub-Code-Link
https://github.com/zekelabs/data-science-complete-tutorial/blob/master/4.%20Linear%20Models%20for%20Classification%20%26%20Regression.ipynb

005 GitHub-Code-Link
https://github.com/zekelabs/data-science-complete-tutorial/blob/master/5.%20PreProcessing.ipynb

006 GitHub-Code-Link
https://github.com/zekelabs/data-science-complete-tutorial/blob/master/6.%20Decision%20Tree.ipynb