Did you check the "Spatial" task view page?
https://cran.r-project.org/web/views/Spatial.html
Cheers,
Bert
Bert Gunter
"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Wed, Apr 6, 2016 at 2:20 AM, <phiroc at free.fr>
wrote:> Hello,
>
> 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.
>
> Philippe
>
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