A function that will download maps for a vector of basins or country codes and return a data frame that has the kml output processed such that it can be plotted with ggplot2 and other mapping functions:
The a vector of ISO3 country code's that you want data about. (http://unstats.un.org/unsd/methods/m49/m49alpha.htm) or the basin ID's [1-468] (http://data.worldbank.org/sites/default/files/climate_data_api_basins.pdf)
kml files can be quite large (100k-600k per country) making
downloading them every time you want to make a map time
consuming. To reduce this time it's easiest to download
kml files and store them. To set the directory use a line
option must be called "kmlpath". These files will be
persistent until you delete them.
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