✚ How to Make Interactive Frequency Trails with D3.js

<img width=“750” height=“467” src=“https://i0.wp.com/flowingdata.com/wp-content/uploads/2019/12/Interactive-frequency-trails.png?fit=750%2C467&ssl=1" class=“attachment-medium size-medium wp-post-image” alt=“” srcset=“https://i0.wp.com/flowingdata.com/wp-content/uploads/2019/12/Interactive-frequency-trails.png?w=1392&ssl=1 1392w, https://i0.wp.com/flowingdata.com/wp-content/uploads/2019/12/Interactive-frequency-trails.png?resize=750%2C467&ssl=1 750w, https://i0.wp.com/flowingdata.com/wp-content/uploads/2019/12/In …