{"version":"1.0","type":"rich","title":"Combined Bar Chart","description":"This sample presents a dynamic, user-driven combined bar chart visualization of life expectancy and population data for ten selectable countries. Users input country names via an HTML form, and the visualization fetches data from external CSV URLs using `d3.csv`, merging the datasets by country. The chart is rendered as an animated SVG using D3 v7, with a dual y-axis scale to accommodate the different measurement units. Selecting a country updates the visualization, which draws each country's data as bar glyphs that animate over time to show changes across multiple years.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/313e8628320f424ca5b4e5dd9405110d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}