[R-sig-Geo] plot (wrld_simpl)

[Roger Bivand]

On Thu, 4 Jun 2015, Xing,Yanru wrote:

> When I used the following code to plot the world country boundary and 
> found out that there is no boundary between South Sudan and North Sudan. 
> Any one know how to solve that?
>

library(maptools) # by the way - always state packages used
> data(wrld_simpl)
> plot(wrld_simpl,add=TRUE)

The dataset in maptools is kept the way it was in 2007. For an 
alternative, see:

library(rworldmap)
data(countriesLow)
plot(countriesLow)

and the vignette in the rworldmap for metadata. See also the cshapes 
package for boundaries tracking changes over time.

Hope this helps,

Roger

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-- 
Roger Bivand
Department of Economics, Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
voice: +47 55 95 93 55; fax +47 55 95 91 00
e-mail: Roger.Bivand at nhh.no