{"version":"1.0","type":"rich","title":"Melting data for multiple lines","description":"This example visualizes population over time for multiple regions using a single chart with multiple lines. It employs a color legend to distinguish regions and a melt operation to reshape the data from wide to long format. The visualization is built with D3 v5, using `scaleTime`, `scaleLinear`, `scaleOrdinal`, `line` with `curveBasis`, and `nest`. Data is loaded from CSV files via `d3.csv` and processed with `timeParse`, `range`, and custom functions. The SVG rendering includes axes with gridlines and a title, with interactive sorting of regions by their final population values.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/09a2f41c48824e0ebd31b01104e92ccc?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}