[R-sig-Geo] merge Shape file

Edzer Pebesma edzer.pebesma at uni-muenster.de
Tue Oct 1 16:09:18 CEST 2013


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On 10/01/2013 03:35 PM, Joseph Bechara wrote:
> Thanks Roman,
> 
> 
> 
> I know the rgeos package but I?m not able to identify which tools
> can replace the merge of ArcGIS.

What does "merge" in ArcGIS do?

Note that package sp has a merge method that merges a Spatial object
with a data.frame, based on the attribute table, similar to base::merge.

> 
> 
> 
> 
> 
> JOSEPH BECHARA
> 
> Wildfire Management Program Coordinator
> 
> Ashrafieh 1020 Building, 8th floor, Mathaf, Beirut, Lebanon
> 
> Tel.: +961 (1) 426630-1-2
> 
> Fax: +961 (1) 426631
> 
> Mail:  <mailto:jbejjani at lri-lb.org> jbechara at lri-lb.org
> 
> <http://www.lri-lb.org/> www.lri-lb.org
> 
> Description: Description: LRI-logo-Email
> 
> 
> 
> 
> 
> From: romunov at gmail.com [mailto:romunov at gmail.com] On Behalf Of
> Roman Lu?trik Sent: Tuesday, October 01, 2013 4:32 PM To: Joseph
> Bechara Cc: R-sig-geo mailing list Subject: Re: [R-sig-Geo] merge
> Shape file
> 
> 
> 
> I think you want the `rgeos` package that offers a plethora of
> functions to work with "features".
> 
> 
> 
> Cheers,
> 
> Roman
> 
> 
> 
> 
> 
> On Tue, Oct 1, 2013 at 3:25 PM, Joseph Bechara
> <jbechara at lri-lb.org> wrote:
> 
> Dear Bary,
> 
> 
> 
> Actually I have to do a geometrical merge operation.
> 
> I?m looking for the equivalent of ?merge? in ArcGIS.
> 
> 
> 
> JOSEPH BECHARA
> 
> Wildfire Management Program Coordinator
> 
> Ashrafieh 1020 Building, 8th floor, Mathaf, Beirut, Lebanon
> 
> Tel.: +961 (1) 426630-1-2
> 
> Fax: +961 (1) 426631
> 
> Mail:  <mailto:jbejjani at lri-lb.org> jbechara at lri-lb.org
> 
> <http://www.lri-lb.org/> www.lri-lb.org
> 
> 
> 
> 
> 
> From: b.rowlingson at gmail.com [mailto:b.rowlingson at gmail.com] On
> Behalf Of Barry Rowlingson Sent: Tuesday, October 01, 2013 4:04 PM 
> To: Joseph Bechara Cc: R-sig-Geo at r-project.org Subject: Re:
> [R-sig-Geo] merge Shape file
> 
> 
> 
> 
> 
> 
> 
> On Tue, Oct 1, 2013 at 12:25 PM, Joseph Bechara
> <jbechara at lri-lb.org> wrote:
> 
> I?m looking for a function to merge 2 shapefiles keeping them as
> ?spatialPolygonsDataframe? class.
> 
> Any clue?
> 
> 
> 
> 
> 
> 
> 
> What do you mean by merge? If the two shapefiles have the same set
> of attributes then just read them into SpatialPolygonsDataFrames
> and do s12 = rbind(s1,s2), and you end up with a SPDF which has all
> the features from s1 and s2.
> 
> Or do you want to do some geometrical merge operation?
> 
> Barry
> 
> 
> 
> 
> _______________________________________________ R-sig-Geo mailing
> list R-sig-Geo at r-project.org 
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> 
> _______________________________________________ R-sig-Geo mailing
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- -- 
Edzer Pebesma
Institute for Geoinformatics (ifgi), University of Münster
Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251
83 33081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de
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