{"version":"1.0","type":"rich","title":"Covid-19 Cases from 2020 to 2023","description":"This interactive line chart visualizes COVID-19 case averages and death counts across U.S. states from 2020 to 2023, sourced from the New York Times rolling-averages dataset. A dropdown menu lets viewers toggle between the two metrics, triggering a smooth 1-second transition that redraws the line path. The visualization uses D3 v7 with an SVG renderer, employing `d3.line()` for path generation, `d3.scaleTime()` and `d3.scaleLinear()` for axes, and a color ordinal scale with `d3.schemeSet2`. Gridlines and labeled axes contextualize the trends.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a79d25a1c2584bdb9597f504ded48af2?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}