Recent Posts

Today I gave a workshop on common data manipulation tasks in R. I was fortunate to have a great audience of graduate students from the …

On Friday, I gave a presentation on Morgan Kelly’s “The standard errors of persistence” a summary of which is …

1. Introduction Recently, a friend asked me how to fit a two-way fixed effects model in R. A fixed effects model is a regression model …

R is great for running quick simulations. Using a running example of college football recruit rankings, I show how we can leverage the …

A common programming assignment when learning regression is to calculate OLS estimators by hand. In this post, I show exactly how to …