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- If you are an R programmer who is looking to learn more about map making in general, please see Mapmaking for R Programmers.
- Object Oriented Choropleths, an article I wrote while developing choroplethr version 2.0.
- If you are looking for data to map, consider the List of data sources at the state, county and zip / zcta level posted on the Open Data StackExchange.
- If you have a question, want to suggest a feature, or want to share some interesting maps that you've made, please consider posting to the choroplethr google group.
- Lamstein, Ari. Zip Code Population and Per-Capita Income in the 2011 ACS. Trulia Tech Blog. January 24, 2014.
In the News
- Smith, David. Animated Choropleths in R. Revolution Analytics Blog. April 9, 2014.
- Glenn, Ezra Haber. New choropleth package in R: R mapping innovation drives on. O'Reilly Programming Blog. January 28, 2014.
- Smith, David. Easy data maps with R: the choroplethr package. Revolution Analytics Blog. January 21, 2014.