Re: [R] German Map in package maps

From: Ray Brownrigg <Ray.Brownrigg_at_mcs.vuw.ac.nz>
Date: Wed, 23 May 2007 08:00:04 +1200

On Wed, 23 May 2007, Maja Schröter wrote:
> Hello everybody,
>
> I'm an absolute newbe in R, so please be gentle to me.
>
> I am looking for a german map in the package maps by Becker and Wilks.
>
> After that I want to draw the German cities from world.cities of this
> package in the map and want to draw further a line from Berlin to Munich.
>
> Has anybody an idea?
>
There is no germany-only map in the maps databases, but the following might be close to what you want:

> library(mapdata) # the world database in the maps package

                                        # probably isn't high enough resolution
> map("worldHires", "Germany")
> map.cities(country="Germany", minpop=1e6, capital=1)
> lines(world.cities[world.cities$name %in% c("Berlin", "Munich") &
world.cities$country=="Germany", c("long", "lat")])
>

HTH
Ray Brownrigg



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