Bivariate Area Chart
A bivariate area chart visualizes two years of daily high and low temperatures in San Francisco, with the area between the two temperature lines filled in steelblue. The data is loaded from a TSV file using `d3.tsv`, with dates parsed via `d3.time.format` and positions encoded with `d3.time.scale` and `d3.scale.linear`. The chart uses `d3.svg.axis` for axes and `d3.svg.area` to render the filled region.
AI-generated descriptionThis two-value area chart is constructed from a TSV file storing the daily high and low temperature in San Francisco over the last two years. Data is from the National Climatic Data Center. The chart employs conventional margins and a number of D3 features:
- d3.tsv - load and parse data
- d3.time.format - parse dates
- d3.time.scale - x-position encoding
- d3.scale.linear - y-position encoding
- d3.extent, d3.min and d3.max - compute domains
- d3.svg.axis - display axes
- d3.svg.area - display area shape
forked from <a href='http://bl.ocks.org/mbostock/'>mbostock</a>'s block: <a href='http://bl.ocks.org/mbostock/3884914'>Bivariate Area Chart</a>
forked from <a href='http://bl.ocks.org/EmbraceLife/'>EmbraceLife</a>'s block: <a href='http://bl.ocks.org/EmbraceLife/9a1196519e95a694e24a48f474788bf0'>Bivariate Area Chart</a>