I am using QGIS Version 2.14.3. I have a map with polygons and a lot of different attributes. Some polygons have NULL values in some columns. I've tried to color the polygons with properties->style->graduated. But in some columns half of the values are NULL and now they don't have any colour.
I know that i could color the NULL values when I chose "categorized" coloring, but I have way to many different entries to do that, because QGIS chooses a colour for every different entry.
I need to have intervals for coloring. Is there an easy way to do that?