I've tried to plot a few islands off the west coast of Croatia (Yugoslavia
in the dataset) and get a similar result. Perhaps it's the (relative small)
size of these island polygons that is stirring up problems?

Cheers,
Roman



On Tue, Apr 27, 2010 at 6:17 PM, Bin Li <bli@lsu.edu> wrote:

> I am trying to draw a map of Guam island in R. Basically, I'd like to draw
> the coastlines of the island and point some cities on it. I tried maps
> package but output a line (see the code below).
>
> library(maps)
> data(world.cities)
> try<-which((world.cities[,5]>144.6)&(world.cities[,5]<144.94))
> world.cities[try,]
> map("world", "USA:Guam")
>
>
> Any feedback is welcome. Thanks.
>
> Bin
>
>
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>
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-- 
In God we trust, all others bring data.

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