A common problem in many businesses is that of forecasting some value over time. It is useful for setting budgets, understanding sales, and any number of other problems. In this post, I will go over the basics of a popular forecasting model. Particularly, I will go over ARIMA models. ARIMA models are univariate models (think…

So you want to be a data scientist. That’s great. But you may be wondering where to start. Sometimes it feels like you are trying to do the impossible like get up to the speed of light. Things get awful heavy as you start going faster. And incremental increases in speed seem to be harder…