Demonstration of transforming CSV data using D3
For NICAR Beginning D3, 2017
Charts forked from d3indepth's block: DOM Manipulation
forked from darlacameron's block: 2. Transforming data
forked from dmcglone's block: 2. Transforming data
Modified http://d3js.org/d3.v4.min.js to a secure url
https://d3js.org/d3.v4.min.js