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Suppose you run an experiment and are interested in an estimate of the average treatment effect (ATE) for the full sample as well as …
Last updated on 5 min read R

A friend recently asked me a question about the delta method, which sent me briefly into a cold sweat trying to remember a concept from …
Last updated on 7 min read R

I was recently working on a problem that required me to take a weighted standard error of a difference in means function. While R does …
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Thinking about Learning Methods Note to Readers: If you arrived at this post because of a search query about how to do bootstrapping, …
15 min read R

In Brnovich et al. v. Democratic National Committee et al., the Supreme Court decided once again to gut the enforcement ability of the …
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In the spirit of notes to myself, here’s a neat trick I learned to bulk recode lots of variables at once. Suppose we have …
Last updated on 5 min read R

There have likely been more words written about the use and misuse of instrumental variables than atoms in the universe. When I was …
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I am working at UC Berkeley’s D-Lab as a Data Science Fellow. One of my responsibilities is to provide consulting to the UC …
Last updated on 2 min read R

Intro When running a randomized control trial (RCT), there is often concern about non-compliance. Subjects may drop out of the …
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What constitutes an exciting game? One possibility is by looking at the amount teams trade off leads. For example, in 2014 the Portland …
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