A redesign of the radar chart function that was created by alangrafu, used in my blog on Making the D3 Radar Chart look a bit better
An even newer version created 2 years later can be found here
forked from nbremer's block: D3.js - Radar Chart or Spider Chart - Adjusted from radar-chart-d3
Modified http://d3js.org/d3.v3.min.js to a secure url
https://d3js.org/d3.v3.min.js