[Qgis-user] Counting instances of points and representing totals

[Nicolas Cadieux]

Hi, 
The easy way out is to do a cross tabulation in excel or libre office calc and to then link both data bases together based on the point id.  I think there may also be a cross tabulation plugin in QGIS???  I would need to look on a computer to make sure. 
Nicolas Cadieux M.Sc. 
Les Entreprises Archéotec inc.  
8548, rue Saint-Denis Montréal H2P 2H2 
Téléphone: 514.381.5112  Fax: 514.381.4995 
www.archeotec.ca 
On Sep 29, 2015 21:47, "Johanna Botman-2 [via OSGeo.org]	" <ml-node+s1560n5226929h60 at n6.nabble.com> wrote: 

	
Hi, 

I'm having trouble working out what should be a simple problem. 

I have data that lists all the traffic accidents in our local area. Each accident has a unique ID, but there can be many accidents at the one location. 

I want to show the accumulated accident numbers using a graduated symbol size based on the count of accidents at that one spot.  Underdark's excellent blog post describes how to use the new features in QGIS 2.10 - using a range from a single attribute. What I want QGIS to do is to add up the incidents for a specific location. 

My brain hurts and I can't think how to do this. Can someone help? 

_______________ 
Johanna Botman 
GIS / Assets Officer
  
  


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