A6 Sequential Color Barchart
This example visualizes total cancer deaths by U.S. state using a sequential color barchart. The bars encode the death count by height while their color reflects the death rate per 100,000 people, ranging from light to dark red. Hovering over a bar reveals precise values via a native title tooltip. The chart is built with D3 v7, using `d3.scaleBand` and `d3.scaleLinear` for axes, `d3.scaleSequential` with `d3.interpolateReds` for color, and the `d3-legend` plugin to display the color threshold legend. Data comes from the CORGIS dataset, rendered as SVG.
AI-generated descriptionVisualization of total cancer deaths by state from the CORGIS dataset made with D3. Color legend and threshold code from Susie Lu.
Hover over bars to see precise values. Fullscreen to see legend.