This stacked area chart is constructed from a TSV file storing the market share of several popular web browsers over the last year. Data is from Clicky Web Analytics. The chart employs conventional margins and a number of D3 features:
- d3.tsv - load and parse data
- d3.time.format - parse dates
- d3.format - format percentages
- d3.time.scale - x-position encoding
- d3.scale.linear - y-position encoding
- d3.scale.category20, a d3.scale.ordinal - color encoding
- [d3.extent](https://github.com/mbostock/d3/wiki/Arrays#wiki-d3_exten