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Updated plotting polygon shapefiles (markdown)
Correct markdown title
Updated the link to the ecoregion file
fortify now uses rgeos
plyr needed for join
Updated Plotting polygon shapefiles (markdown)
added code to extract polygon label points Updated Plotting polygon shapefiles (markdown)
added image links Updated Plotting polygon shapefiles (markdown)
clarified holes (there's a trick!) Updated Plotting polygon shapefiles (markdown)
minor correction Updated Plotting polygon shapefiles (markdown)
Link to example shapefile Updated Plotting polygon shapefiles (markdown)
dress up title Updated Plot shapefiles (markdown)
Expand problem definition and ready for publish Updated Plot shapefiles (markdown)
minor correction Updated Plot shapefiles (markdown)
created, not yet linked to rest of world Created plotting polygon shapefiles (markdown)