An exploration of nesting data. 3 - rollup bar chart.

Using the tutorial and series of charts described here:

https://amber.rbind.io/2017/05/02/nesting/

d3.js ver: v5.

D3 pattern used:

• A vanilla HTML implementation.

• Reusable structure:

• • derived from Mike Bostock's Towards Reusable Charts (https://bost.ocks.org/mike/chart/) as the source of the foundational principles.
• • But uses the ProD3 pattern (Pro D3.js Use D3.js to Create Maintainable, Modular, and Testable Charts by Marcos Iglesias https://www.apress.com/gp/book/9781484252024) as the basis for the charts.

Addtional help from and aknowledgement to:

• Mastering D3.js by Castillo Pablo Navarro. https://www.packtpub.com/web-development/mastering-d3js

• Data Visualization with D3.js Cookbook by Nick Qi Zhu https://www.packtpub.com/product/data-visualization-with-d3-js-cookbook/9781782162162