title: Issue setting data for Radar Chart in iOS charts
body: <p>I am using the charting library here <a href="https://github.com/danielgindi/Charts/" rel="nofollow">https://github.com/danielgindi/Charts/</a> however I am having a couple of issues.</p>
  
  <p>First, I have no idea how to set the data for a radar chart type and second, I have an error when apply the RadarChart to uiview. The error is</p>
  
  <pre><code>Unknown class RadarChartView in Interface Builder file.
  </code></pre>
  
  <p>The app still runs and I can see an empty uiview.</p>
  
  <p>I have looked at the demo app and through the documentation but I am still unsure how to actually set any data to the chart.</p>
  
  <p>Thanks</p>