Choroplethr simplifies the creation of choropleth maps in R. Choropleths are thematic maps where geographic regions, such as states, are colored according to some metric, such as the number of people who live in that state. Choroplethr simplifies this process by
Documentation for choroplethr can be found Choroplethr.com.
If you have a technical question about Choroplethr, please ask on StackOverflow: https://stackoverflow.com/questions/tagged/choroplethr.