Multi-Series Line Chart

This line chart is constructed from a TSV file storing the daily average temperatures of New York, San Francisco and Austin over the last year. 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.scale.category10, a d3.scale.ordinal - color encoding
• d3.extent, d3.min and d3.max - compute domains
• d3.keys - compute column names
• d3.svg.axis - display axes
• d3.svg.line - display line shape

forked from mbostock‘s block: Multi-Series Line Chart