Howdy Georg,

I've followed this tutorial/example to dissolve related polygons into
larger spatial units:

And Roger has additional info here:

Hope these resources help get you where you want to go,
Ann H.


Message: 1
Date: Tue, 18 Oct 2016 10:31:34 +0200
Subject: [R-sig-Geo] Reshaping geographic data

Content-Type: text/plain; charset="US-ASCII"

Hi All,

I need to reshape an ESRI shape file: and resp

This means that I need to combine the areas of the ZipCodes (i. e. PLZ) to
the ZipCode regions (i. e. PLZ Leitregion).

The city "Duesseldorf" has a couple of ZipCodes for different parts of the
city, e. g. 40210 40211 40212 40213 40215 40217 and so on. The ZipCode
region (PLZ Leitregion) is "40".

What I need to do is to combine the area information in the above given
ESRI shapefile to get the area for the ZipCode region.

I found an instruction for T-SQL Server:

How can I do this using R?

Kind regards


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