June 2017
Beginner to intermediate
368 pages
8h 31m
English
Polar area charts are similar to pie charts except that it is the radius of the segment that varies depending on the value. You will find an example of a polar chart in the Chart.js documentation at http://www.chartjs.org/docs/#polar-area-chart. What's great about polar charts is that you can see at a glance, an overview of a student's progress. Can you rewrite the drawbar() function so that it renders a polar chart instead?
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