{"version":"1.0","type":"rich","title":"project a","description":"This multi-line chart visualizes four petroleum price metrics (A1, R1, M1, D1) from the PET_PRI_GND_DCUS_NUS_W dataset over time. The visualization uses d3.csv to load and parse the data, d3.scaleTime and d3.scaleLinear for axes, and d3.line to generate the paths. Each metric receives a distinct color from d3.scaleOrdinal, with an interactive legend that toggles line visibility by adding a hidden-line class on click. The chart is rendered as an SVG and also demonstrates d3.axisBottom and d3.axisLeft.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ec2791607d5a4f51b986638d5bb91c0b?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}