{"version":"1.0","type":"rich","title":"Let's Make a Bar Chart (v4)","description":"This bar chart displays the relative frequency of each letter in the English alphabet, using a simple, static SVG visualization. The code loads letter-frequency data from a TSV file and maps it to rectangles using `d3.scaleBand` for the x-axis and `d3.scaleLinear` for the y-axis. Axes are rendered with `d3.axisBottom` and `d3.axisLeft`, with y-axis ticks formatted as percentages. Hovering over a bar changes its fill from steelblue to brown via CSS, while the chart itself is built with D3 v4’s data-join pattern (`enter().append`).","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-cd9fecfd898e3aa760fbc6f6e0fe01b7?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}