{"version":"1.0","type":"rich","title":"Old Faithful HeatMap","description":"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.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8d653a16813d47039b1f34df0476414d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}