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I have joined data from a csv file to my shapefile. The attribute table shows a successful join. I have converted the variable of interest to INTEGER. But when I go through Style to categorize the variable, all I get is zero. Help please!

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It's not your fault. It's a bug in QGIS 1.8. You can choose between categorizing manually or exporting the joined layer to e.g. Shapefile, and use this new file in your project.

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That worked! Thanks so much! Stephen – user20036 Jul 13 '13 at 14:30

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