Using QGIS 1.8, I've got a shapefile with an integer field called AREA and I'd like to sum the values which are in this shapefile. Does anybody know how to ? Thank's a lot. Robert
You can immediately get field summary data, including sums, from the menu Vector|Analysis tools|Basic statistics:
You could also open the .dbf file associated with your shapefile in Excel or OpenOffice, and you'll be able to work with all the field values as a spreadsheet.