Sep 4, 2013 — Note on Bivariate Regression — I’ve just updated and uploaded a note on bivariate regression from a sampling perspective (based on GOV 2000 material): Note on Bivariate Regression: Connecting Practice and Theory Read more

Aug 1, 2013 — Bootstrap Confidence Interval Methods in R — This post briefly sketches out the types of bootstrapped confidence intervals commonly used, along with code in R for how to calculate them from scratch. Specifically, I focus on nonparametric confidence intervals. The post is structured around the list of... Read more

Jul 10, 2013 — Using ggplot2 to Plot Regression Coefficients with Confidence Intervals — A graphical approach to displaying regression coefficients / effect sizes across multiple specifications can often be significantly more powerful and intuitive than presenting a regression table. Moreover, we can easily express uncertainty in the form of confidence intervals around our... Read more

Jun 20, 2013 — DAGs in R — Following up on the previous post, another way to construct DAGs is using R. I think the igraph package is one of the customizable ways to do so. This is a powerful package designed for the visualization and analysis of... Read more