One of the things we hope to do at Code Horizons is help steer you toward the best tools to meet your needs. Here’s a guest post by Noah Greifer, a postdoctoral fellow at Johns Hopkins and the developer of WeightIt and cobalt. Noah has just completed a massive overhaul of the workhorse MatchIt package for matching in R. This post will introduce you to some of its exciting new features. You can learn how to use all of these packages in Matching and Weighting for Causal Inference with Using R, offered by Statistical Horizons.