{"version":"1.0","type":"rich","title":"area chart","description":"This example shows a stacked area chart of population trends over time for multiple groups, with a legend identifying each series. It loads CSV data from a GitHub gist, using `d3.csv`, and renders the chart as SVG. The code uses `d3.stack` to compute layered series, `d3.area` with `y0` and `y1` accessors to generate paths, and `d3.scaleOrdinal` with `d3.schemeSet2` for colors. Axes are drawn with `d3.axisBottom` and `d3.axisLeft`, with data-driven tick formatting via `d3.format`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/103cb7af981a404ab7c1753854c9b9e0?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}