Visualization Examples
A ggplot2 tour of good and bad visualization examples
From Parallel Plot to Radar Plot
How to turn a parallel coordinate plot into a radar plot with ggplot2
ggwordcloud (0.6.2): a word cloud geom for ggplot2
A word cloud geom for ggplot2, introduced through the ggwordcloud package vignette
Supervised Classification: An Exploration with R
The classical supervised classification methods, illustrated with caret on a simple two-class dataset
Mathematical Genealogy
Scraping the Mathematics Genealogy Project with rvest and drawing the tree with DiagrammeR and visNetwork