[R-sig-Geo] shp file with 2 types of bodies (water and forest)

[stephen sefick]

maybe try

?subset

On Mon, Dec 14, 2009 at 1:41 PM, Baptiste Coulmont <coulmont at ens.fr> wrote:
> I would like to map the forests in green and the water bodies in blue :
>
> summary(nature)
>
> Object of class SpatialPolygonsDataFrame
> Coordinates:
>         min       max
> r1  2.560776  6.403847
> r2 49.493613 51.505419
> Is projected: FALSE
> proj4string : [+proj=longlat]
> Data attributes:
>                           NAME           TYPE
>  Dijle                       :   43   forest:6830
>  Schelde                     :   30   water :6564
>  Ringselven                  :   17
>  Albertkanaal                :   15
>  Westelijke Rijkswaterleiding:   14
>  (Other)                     :  990
>  NA's                        :12285
>
> How do I ask R to map, for example, only the forests ?
>
> --
> Baptiste   Coulmont
> http://coulmont.com
>
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>



-- 
Stephen Sefick

Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods.  We are mammals, and have not exhausted the
annoying little problems of being mammals.

								-K. Mullis