Old Faithful HeatMap
This interactive heatmap visualizes the Old Faithful eruption dataset, showing the relationship between eruption duration and waiting time as a grid of colored bins. The visualization uses Vega-Lite’s rect mark with binned quantitative encodings for both axes and a count aggregate for color intensity, rendered via vega-embed. Moving the mouse dynamically adjusts the number of histogram bins by re-rendering the specification, using D3’s `d3.tsv` to load the remote data and `d3.select` to listen for mousemove events. The color scheme uses a green sequential palette, with the legend positioned to the left.
AI-generated descriptionA visualization of the Old Faithful Dataset as a 2D HeatMap visualization using Vega-Lite.
Draws from Vega-Lite Example: Table Binned heatmap.