"Russia is a riddle wrapped in a mystery inside an enigma." -- Winston Churchill, radio address in 1939 A couple of weeks ago, Graph of the Week published an article describing the significant improvement in medals won by the host...

In this tutorial I am going to share my R&D and trading experience using the well-known from statistics Autoregressive Moving Average Model (ARMA). There is a lot written about these models, however, I strongly recommend Introductory Time Series with R, which I find is a perfect combination between light theoretical background and practical implementations in

Data science is a sophisticated and complex discipline, but since it's still an emerging field, its practitioners come from a wide variety of backgrounds. Typically, though, a background in working with large data sets in a research setting is advantageous. This is why you may be mingling with a former physicist or immunologist at the next data hackathon...

A while ago I wrote this post with some R code to visualize the updating of a beta distribution as the outcome of Bernoulli trials are observed. The code provided a single plot of this process, with all the curves overlayed on top of one another. Then John Myles White (co-author of Machine Learning for

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