Updated version of previous post!
* UPDATED 2nd SEPTEMBER 2013 *
Whenever I have needed a map in a presentation, I have always slipped in a cheeky screenshot from Google and prayed that the copyright police won’t burst into the door and arrest me (talks are stressful enough). However, I was determined to change this, and after extensive trawling of the web, I’ve put together a quick template to make a simple large scale map for talks, presentations and posters using GIS shape files and ggplot2.
Here is the finished object (full code at the end of this page):
##  TRUE
worldmap <- readShapeSpatial("world_borders.shp")
*** NB: You will require the library
gpclib to read in the shapefile – if gpclibPermit() returns FALSE, then try installing gpclib again. As of Sep…
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