On 22/11/2011, at 14:19, Alex Mandel <[email protected]> wrote:
> On 11/21/2011 01:17 PM, David wrote: >> Hi everyone >> Thanks to Juan and Ramon for suggestions about Adding Data to the Attribute >> Table. >> >> It turns out that my mistake was not having the 'layers' panel open when >> doing the 'join' process. So when I used this panel, it worked! Well, >> almost .... >> >> Now when I open the Style box and select Graduated Render, the drop-down >> menu has only the columns from the original attribute table. The columns I >> have added do not appear in the list. But if I select Categorised render, >> all the new columns are there. >> >> Anyone got any ideas? >> David Asquith, UK >> > > The joined columns may be text only and not numeric (possibly a bug). A work > around is to add a new calculated column with the data you want, that way you > can specify it's type as numeric. > > Enjoy, > Alex That's very likely. See this thread from a few months back, it might help. http://lists.osgeo.org/pipermail/qgis-user/2011-August/013236.html -ramon._______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
