# what do you call a pie chart with equal arcs but different areas

I want to create a pie chart for four items, the arc of the slices would be equal, each 90 degrees, however the areas would be different since I will shrink or enlarge the slice depending on the data. Here is an that is close to what I want:

Basically it would look like a circular bar graph that is filled in the center. What do you call this type of chart and how would I create it.

• It looks like polar area diagram (or rose diagram in geology) Apr 9, 2013 at 3:37
• Like a coxcomb chart... Apr 9, 2013 at 3:40
• How you would create it is probably more of a Stack Overflow question, but at a minimum, we would need to know what software you would use. Apr 9, 2013 at 3:41
• To quote Tukey "There is no data that can be displayed in a pie chart that cannot be displayed better in some other chart". You can probably create your chart, but you shouldn't; it is worse than a regular pie chart, and that's saying something. Apr 9, 2013 at 9:55
• @RobertJones, I have a map with different countries and I want some to visualize the number of articles published for each country by four different newspapers. Any suggestions? I only could think of a pie chart. Apr 9, 2013 at 13:15

I've plotted these diagrams using Matlab function rose http://www.mathworks.com/help/matlab/ref/rose.html