Grouped radial columns are multi-series columns represented side-by-side in a radar or polar circular area. Take a regular multi-series grouped column chart and bend it into a circular area to get this chart type.
Our Global Sales multi-series demo charts show product quantities sold in 2007, 2008 and 2009 in US, France and UK. Take the columns displayed by our grouped column charts and bend them into the circular polar areas of these new charts, for a different representation. Each series gets the same color, and series segments alternate in separate groups.