Hi Jim, I don't think you can do quite the same thing... but you can achieve a comparable result.
I generate a dataset which has the location & number of events there, then use the symbology tool to scale the symbol by the count, & optionally use the count as the label. I manage virtually all my data in Postgis, & do most of that sort of aggregation & data manipulation in the database. QGIS tends to be more the visualisation tool. HTH, Brent Wood --- On Tue, 3/20/12, Jim(tm) <lookitsja...@hotmail.com> wrote: From: Jim(tm) <lookitsja...@hotmail.com> Subject: [Qgis-user] Collecting Events To: qgis-user@lists.osgeo.org Date: Tuesday, March 20, 2012, 5:52 AM Greetings, all! I am attempting to create size-graduated point markers for burglary data based on the number of burglaries per address. With Arc, one would use the Collect Events tool to combine multiple points into a single weighted point - eg, from 5 points representing burglaries at one address you would get one point with the weighted value of 5. How is this done in QGIS? -- View this message in context: http://osgeo-org.1560.n6.nabble.com/Collecting-Events-tp4633998p4633998.html Sent from the Quantum GIS - User mailing list archive at Nabble.com. _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
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