Following charts examples are using Plotly and Circles open source graphing JS libraries. To use use plotly.js or circle.js libraries simply add their CDN links to your head
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<!-- Plotly JS --> <script src="https://cdn.plot.ly/plotly-latest.min.js"></script> <!-- Circles JS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/circles/0.0.6/circles.min.js"></script>