A radar chart or spider chart allows plotting of multivariate data. http://en.wikipedia.org/wiki/Radar_chart.
Completed as of Highcharts 2.3
Shamasis Bhattacharya commented
Hey, we have implemented Radar (Spider) charts on HighCharts. Have a look at: http://www.fusioncharts.com/PowerCharts/gallery/#radar
I need this. It would be a major plus.
Joshua Jansen commented
Really looking forward to this feature. The radar chart is an essential part of our application, therefore we are implementing Google charts for now. Really hoping we can switch to HighCharts in the near future! If so; +1 license sale for you guys for sure! ;-)
If radar charts would become available for highcharts i would implement it immediately.