Q: Has anyone implemented cartograms [**] in R? A search on the R site turned up https://stat.ethz.ch/pipermail/r-sig-geo/2005-December/000698.html which led to http://www.okada.jp.org/RWiki/index.php?cmd=read&page=Rmap%A4%F2%BB% C8%A4%C3%A4%BF%C3%CF%BF%DE%C9%BD%BC%A8&word=Rmap#content_1_35 which has (one form of) a cartogram as a PNG, but which doesn't seem to have code. (The site is in Japanese, so I can't be sure on the code availability.) ** A cartogram are geographical maps in which region boundaries are distorted to represent some property of interest, e.g. population density. For an introduction, see http://en.wikipedia.org/wiki/Cartogram and for some elegant examples for election results, see http://www-personal.umich.edu/~mejn/election Dan E. Kelley, Assoc. Prof. phone:(902)494-1694 Dept. Oceanography fax:(902)494-2885 Dalhousie University mailto:Dan.Kelley at Dal.CA Halifax, NS, Canada B3H 4J1 http://www.phys.ocean.dal.ca/~kelley/ Kelley_Dan.html
Dan E. Kelley writes:> Q: Has anyone implemented cartograms [**] in R? A search on the R > site turned up > https://stat.ethz.ch/pipermail/r-sig-geo/2005-December/000698.html--snip--> and for some elegant examples for election results, see > http://www-personal.umich.edu/~mejn/electionI don't know about any R implementations, but perhaps someone on the R-Sig-Geo has seen something. Hopefully you noticed the CODE Gastner and Newman provide (through the site you mention) along with a short tutorial. The software is available as a zip file from the link on: http://www.santafe.edu/~mgastner/ That site also provides links to Gastner and Newman's PNAS paper: http://www.pnas.org/cgi/content/full/101/20/7499 or http://www.pnas.org/cgi/reprint/101/20/7499 and links to a Windows executable, http://www.jatrigis.com/cartogram/cartogram.htm, and java implementations, http://people.cas.sc.edu/hardistf/cartograms/. The MAPresso site may also be of interest: http://people.cas.sc.edu/hardistf/cartograms/ Rob