Dear all,
attached you can find the script v.cluster for grass gis...
It needs R installed in your computer.
the script perform a spatial clustering of a points maps, partitioning
(clustering) the data into 'k' clusters ``around medoids'', a more
robust version of K-means.
the script is heavily based on tutorial
(http://grass.itc.it/pipermail/grassuser/2006-July/035288.html) by Dylan
Beaudette, UC Davis (many thanks!!!!)
Please try it before using it for production.... it can have some bugs!!
cheers
Ivan
On mar, 2006-07-25 at 14:51 +0200, Martin Wegmann wrote:
Dear Tom,
have a look at this thread, perhaps that's what you are looking for:
http://grass.itc.it/pipermail/grassuser/2006-July/035288.htmla script v.cluster can be found here (related to the previous thread)
http://grass.itc.it/pipermail/grassuser/2006-July/035307.htmlcheers, Martin
On Tuesday 25 July 2006 14:36, listen@thomas-zastrow.de wrote:
> Dear QGIS-users,
>
> I'm not sure if I'm right here or if my question is realy silly ... I'm new
> to QGIS and GIS general, read something about GRASS, googlet around but I
> can't find a solution ...
>
> So, what I have is a map with points, produced by QGIS, works perfect. Now,
> these points have different colors and I want to cluster them into areas.
>
> Is there any software which can do this automatically? Or has anybody an
> idea what I have to do?
>
> For example:
>
> http://www.thomas-zastrow.de/temp/maps.png
>
> The first map shows what I have now - points with different colors on a
> map. The second one is - ähem - what it should look like, the points are
> clustered into areas (I did this manually with the GIMP).
>
> Thank you very much, I'm thankful for every hint!
>
> Best regards,
>
> Tom
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--
Ivan Marchesini
Department of Civil and Environmental Engineering
University of Perugia
Via G. Duranti 93/a
06125
Perugia (Italy)
e-mail: marchesini@unipg.it
ivan.marchesini@gmail.com
tel: +39(0)755853760
fax: +39(0)755853756
jabber: geoivan73@jabber.org
(attachments)
v.cluster (4.27 KB)