Review comments:
1 ) Your munging steps look pretty good. I like how you got rid of outliers. You duration calculation seems fines too.
2) A little more annotation around your regression modeling and selection of feature would help in following your analysis. Like why you decided to drop certain features vs keeping the stronger ones.
3) Way to go on the dummy function
4) I'm not sure why your R2 went up to 1 at the end. One reason I can think of is over fitting.
Review comments: 1 ) Your munging steps look pretty good. I like how you got rid of outliers. You duration calculation seems fines too. 2) A little more annotation around your regression modeling and selection of feature would help in following your analysis. Like why you decided to drop certain features vs keeping the stronger ones. 3) Way to go on the dummy function 4) I'm not sure why your R2 went up to 1 at the end. One reason I can think of is over fitting.