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How to calculate weighted mean coordinates within polygons?
I'm using QGIS 1.8 on OSX 10.8.3.
I have a polygon shapefile of all of the US state legislative districts.
I also have a layer of points that are centroids of US Census Tracts, with a field for the ...
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Access to Attribute join via command
I have 1.8 Quantum GIS, the menu "attribute join from the FTOOLS" no appears in the screen , is there a way to access via command?.
thanks in advance
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Using random select FTools in QGIS
I wanted to ask about Random Select in Ftools for QGis, I have a polygon and wanted to randomly select within a specific subgrup of poligons that refers to an administrative boundary, but I haven´t be ...
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Merging point shape file problems?
I've got a whole bunch of shape files that have soil testing data in them that I would like to merge together so I can do some analysis but when I use the Ftools merge shape files command I get an ...
