Vega-Lite US Map for Unemployment Rate
This choropleth map visualizes U.S. state-level unemployment rates using a sequential color scale. Built with Vega-Lite, it loads TopoJSON state boundaries and joins them to a TSV file of rates by state ID. The map applies an Albers USA projection. The code uses `vega-embed` to render the specification, with `getData.js` importing CSV data via D3. A hover effect is implemented with CSS, and the original configuration was adapted from a Vega-Lite example that used county-level data.
AI-generated descriptionThis example of Choropleth of Unemployment Rate comes form Vega-Lite's site. Originally, tt reads a unemployment rate from a tsv data file, which can be found from vega demo data for unemployment rate by state in US in vega docs data on github. But the original example is using counties instead of state. The unemployment tsv file I used actually comes from a different source from here: US States Choropleth.