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For the mind does not require filling like a bottle, but rather, like wood, it only requires kindling to create in it an impulse to think independently and an ardent desire for the truth. — Plutarch On Listening to Lectures The impulse to ingest more...

(This article was originally published at Statistical Modeling, Causal Inference, and Social Science, and syndicated at StatsBlogs.) The other day on the Stan users list, we had a long discussion on hierarchical models in phylogeny that I thought might...

Joint work with Gautam Muralidhar. One of the most important business metrics for executives is churn rate—the rate at which your customers stop doing business with you. Today, data driven companies use data science to effectively predict which customers...

In the Jeopardy! game show contestants are presented with questions formulated as answers that require answers in the form questions. For example, if a contestant selects “Normality for $200″ she might be shown the following clue...

When designing an experiment, a common diagnostic is the statistical power of effects. Bradley Jones has written a number of blog posts on this very topic. In essence, what is the probability that we can detect non-negligible effects given a specified...