{"version":"1.0","type":"rich","title":"dv2020-ep22-viz21 - bar chart, margin convention","description":"A horizontal bar chart ranks the 20 most populous countries by 2020 population estimates from UN World Population Prospects 2019. D3’s `scaleBand` positions bars vertically, while `scaleLinear` maps population values to bar widths. The React component loads CSV data via `d3.csv`, sorts it descending, and renders an SVG with the classic margin convention, translating a group for axes-free inner dimensions.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/636f7f08df1b4a72a5d15d1da47907b1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}