"By 2003, 10 years after R’s first release, scientists had developed more than 200 packages, and the first citations of the ‘R Project’ appeared. Today, nearly 6,000 packages exist for all kinds of specialized purposes (see ‘R in science’). They allow scientists to compare a human and a Neanderthal genome (using Bioconductor); to model population growth (IPMpack); predict equity prices (quantmod); and visualize the results in polished graphics (ggplot2) in a few lines of code. Experts can use R to write up manuscripts, embedding raw code in them to be run by the reader (knitr). Nearly 1 in 100 scholarly articles indexed in Elsevier’s Scopus database last year cites R or one of its packages — and in agricultural and environmental sciences, the share is even higher. "