Repo for Kaggle Rossmann sales prediction competition
https://www.kaggle.com/c/rossmann-store-sales
One of my personal best performances where I finished 28th, at a striking distance from the top 3 ranked scores.
For the most part, I used very simple models and my language of choice back then was R. I eventually switched to Python towards the end of the competition.
One of the best scoring model for me was my very first submission - a simple median sales prediciton based on the day of the week and if a sales promotion was on or not.