A quick test run of the FactoMineR package for R. This package focuses on multivariate exploratory data analysis, such as Principle Components Analysis (for numerical data) and Correspondence Analysis (for categorical data). In an earlier blog post I took a look at a large collection of chess games and tried to quantify the “first move” […]

# R

## The Words Democrats and Republicans Use

It came to me after listening to the State of the Union Address: Can we tell whether a speech was from a Democrat or a Republican President, purely based on metrics related to the words used? It makes sense that we could. After all, we can analyze emails and detect spam that way. Automatic text […]

## First Move Advantage in Chess

The Elo Rating System Competitive chess players, at the amateur club level all the way through the top grandmasters, receive ratings based on their performance in games. The ratings formula in use since 1960 is based on a model first proposed by the Hungarian-American physicist Arpad Elo. It uses a logistic equation to estimate the […]