data visualizationpie chart
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:
](https://i.stack.imgur.com/HDOPk.png)
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's going to be a challenge to meet your requirement of seeing individual scores and weights with 6000 data points. You will probably need to aggregate first or look at subsets.
Here is a combination view, showing all the points and some aggregate representation using box plots. The points are colored by weight. There is still considerable overstriking, which you might alleviate if your software has a "dodge" option for dot placement.
Best Answer
It looks like as a polar area diagram or rose diagram (in geology).
To create it, in general, you need to create several circles with radii proportional to your data categories, then just cut slices.
I've plotted these diagrams using Matlab function
rosehttp://www.mathworks.com/help/matlab/ref/rose.htmlOr try this free program http://www.rgraph.net/examples/rose.html