[R] Plotting data on a map
bgunter.4567 at gmail.com
Wed Apr 6 19:16:18 CEST 2016
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On Wed, Apr 6, 2016 at 2:20 AM, <phiroc at free.fr> wrote:
> I would like to generate a small map (say 10cm x 10cm) of France showing cumulative numbers by Distribution Center
> stored in a database:
> DISTRIBUTION_CENTER COUNT
> Paris 122
> Paris 3
> Paris 21
> Lyon 12
> Lyon 4444
> Lyon 33
> Grenoble 55
> Grenoble 999
> Grenoble 99
> I have looked at different graphing packages such as 'sp', 'raster' and 'ggplot2', but am not sure which one is most
> appropriate for my purposes. Furthermore, I don't understand how you retrieve city coordinates from shp, gadm, etc., maps
> generated, or downloaded from the web and then processed, with those packages (SHP, GADM, etc.), and plot data at those coordinates.
> Any help would be much appreciated.
> Many thanks.
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