{"version":"1.0","type":"rich","title":"10","description":"This example demonstrates two linked population visualizations for countries: a bubble chart comparing population in 1980 versus 2022, and a grouped bar chart showing population changes across four census years. Using D3 v7, the visualization loads data from a CSV file and renders SVG elements with scales and axes. The bubble chart uses `d3.scaleSqrt` for bubble radius, while the grouped bar chart employs `d3.scaleBand` and `d3.scaleOrdinal` for categorical positioning and color encoding, with both charts sharing axis labels and tooltips.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b2695825bb384989af841741ff5f5fb4?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}