Hadley Wickham has written many popular R packages, so many that they are sometimes referred to as the “Hadleyverse.” This is a nice biography that emphasizes the impact that Dr. Wickham has had on R.
Dan Kopf. Hadley Wickham, the Man Who Revolutionized R. Published July 24, 2015. Available at http://priceonomics.com/hadley-wickham-the-man-who-revolutionized-r/
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