An application of a hierarchical time series model on a dataset of historical soda sales in Greece. On a hot summer day, you walk into the local store, looking for something to quench your thirst. You make a turn down the beverage aisle, and are greeted by a fully stocked…

A detailed case study in building a multivariate time series model to forecast daily electricity demand in Victoria, Australia. — Electricity demand forecasting is critical to power grid management and operation. As electricity demand ebbs and flows cyclically throughout the days and seasons, power generators aim to sell excess capacity for the highest price, while filling excess demand at the lowest price. As such, the ability to predict electricity demand…

WallStreetBets is a fast-growing Reddit community with almost 1.5 million members where users post about investing, speculative trading, and the stock market in general. Between the memes of never-ending economic stimulus, or the recent surge in tech stock prices, you’ll find members posting about their next big trade. At first…