{"version":"1.0","type":"rich","title":"Fork of Lab 1: Line Chart","description":"This interactive D3.js line chart visualizes annual CO2 emissions for selected countries from 1990 to 2014, sourced from UN Data. The visualization uses a multi-line chart with an ordinal color scale and includes axes with formatted tick labels. Built with D3 4.7.4, the code uses `d3.select`, `d3.nest()`, `d3.scaleOrdinal`, `d3.scaleLinear`, and `d3.axisBottom`/`d3.axisLeft` to render SVG elements. The chart allows data filtering by adjusting the `selectedCountries` array, demonstrating animated transitions between different country selections.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f1be7497f24244bdbd58ce46d82c2b27?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}