Plotting donut plots

Donut plots a version of pie chart, are a popular data visualization technique that give visuals for proportions in your data. In this recipe, we will see how we can use the GRAL Java library to plot donut plots for 10 random variables.

Getting ready

  1. To use GRAL for plotting bar charts, we need the example applications provided with the library in the form of Jar files. These example applications can be downloaded from http://trac.erichseifert.de/gral/wiki/Download. Download the gral-examples-0.10.zip file from the download location into your local disk. Extract the files.
  2. You will see a directory structure as in the Getting ready section of the Plotting a 2D sine graph recipe. Our folder of interest is the lib folder.
  3. Inside ...

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