The symbols function can add circles to an existing plot with the diameter based on another variable. You may need to project points if you draw a map with a projection.
-- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- > project.org] On Behalf Of mathijsdevaan > Sent: Thursday, December 09, 2010 7:21 PM > To: r-help@r-project.org > Subject: [R] Projecting data on a world map using long/lat > > > Hi, > > I have a dataset (CSV) with some counts of firms located around the > globe. > Each count is assigned to the longitude and latitude of the specific > location. Now I want to plot these counts on a world map using dots > (size of > dots represent the count). I have been unable to find any info on > whether > this is possible and if so, how? Can you please help me? Thanks! > > Mathijs > -- > View this message in context: http://r.789695.n4.nabble.com/Projecting- > data-on-a-world-map-using-long-lat-tp3081298p3081298.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting- > guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
