Randy George, an expert in web map applications, has been fascinated with computer graphics (especially maps) since the early '80s. For much of that time, he says, the technology for mapping has been pretty static:
But now, with the advent of the R language, things have changed. "R changes things in the geospatial world", says Randy, and R has "evolved into a useful platform for ad hoc spatial analysis". In his blog post, "The R Project for Maps", he gives several examples of using R for creating maps, including this one of using the leaflet package to create an interactive map of census data:
Randy also gives several other examples of interactive R graphics behond maps, including this weather chart with an interactive slider based on the dygraphs package:
I've only included static screenshots of the various maps and charts above, so be sure to follow the link to Randy's post linked below for the interactive versions with the R code used to create them.
Maps for the Web: The R Project for Maps