[R-sig-Geo] select polygons in polygons

[Edzer Pebesma]

That's right, it is not there; I thought this morning about a way to 
look whether all the points of one polygon fall in another, which sp's 
overlay could do, but that's not a sufficient condition.

Perhaps functions in package gpclib can do this?
--
Edzer

Murray Richardson wrote:
> Thanks Friderike.  I assumed this was the answer, but it doesn't 
> appear to work with two SPDF objects.  i.e.:
>
> > overlay(polysA,polysB)
> Error in function (classes, fdef, mtable)  :
>  unable to find an inherited method for function "overlay", for 
> signature "SpatialPolygonsDataFrame", "SpatialPolygonsDataFrame"
>
>
> Murray
>
>
> Oehler, Friderike (AGPP) wrote:
>> Try ?overlay
>>
>> Regards,
>> Friderike
>>
>>
>> -----Original Message-----
>> From: r-sig-geo-bounces at stat.math.ethz.ch
>> [mailto:r-sig-geo-bounces at stat.math.ethz.ch] On Behalf Of Murray 
>> Richardson
>> Sent: 25 September 2008 06:01
>> To: r-sig-geo at stat.math.ethz.ch
>> Subject: [R-sig-Geo] select polygons in polygons
>>
>>
>> Hello users,
>>
>> There is probably a very simple solution to this that I am missing: 
>> is there a way to select polygons in one SPDF that fall within the 
>> polygons of another SPDF? This would save me a lot of processing time 
>> as I am having to take a very circuitous route to achieve the same 
>> outcome.
>>
>> Thanks!
>>
>> Murray
>>
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>>
>
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-- 
Edzer Pebesma
Institute for Geoinformatics (ifgi), University of Münster,
Weseler Straße 253, 48151 Münster, Germany.  Phone: +49 251
8333081, Fax: +49 251 8339763  http://ifgi.uni-muenster.de/
http://www.springer.com/978-0-387-78170-9