[R-sig-Geo] extract only some polygons from shp-file

[Alexander Werner]

Dear Stijn,

you may try something like

Map_City=Map_Complete[Map_Complete$City_variable==CityValue,]

Alexander

Stijn Ruiter schrieb:
> Dear all,
> I am new to spatial data handling/modeling in R. Could you please help me with the following?
> I have a shp-file of class 'SpatialPolygonsDataFrame', so it contains additional variables. I would like to select only those spatial objects that have a certain score on one of these additional variables. To be more precise, I have polygons of neighborhoods. These neighborhoods belong to different cities (which is recorded in one of the additional variables). I'd like to select only those polygons belonging to a single city and keep all additional variables for those polygons.
> Thanks in advance,
> Stijn
>
> --
>
> Stijn Ruiter
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> Netherlands Institute for the Study of Crime and Law Enforcement NSCR
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-- 
Dipl.-Ök. Alexander Werner
_______________________________________________
Universität Kassel
Fachbereich Wirtschaftswissenschaften
Fachgebiet Empirische Wirtschaftsforschung
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