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Plot: Ridgeline Plot
chart = Plot.plot({
height: 40 + new Set(traffic.map(d => d.name)).size * 17,
width,
marginBottom: 1,
marginLeft: 120,
x: {axis: "top"},
y: {axis: null, range: [2.5 * 17 - 2, (2.5 - overlap) * 17 - 2]},
fy: {label: null, domain: traffic.map(d => d.name)}, // preserve input order
marks: [
d3.groups(traffic, d => d.name).map(([, values]) => [
Plot.areaY(values, {x: "date", y: "value", fy: "name", curve: "basis", sort: "date", fill: "#ccc"}),
Plot.lineY(values, {x: "date", y: "value", fy: "name", curve: "basis", sort: "date", strokeWidth: 1})
])
]
})
traffic = FileAttachment("traffic.csv").csv({typed: true})
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Experiment and prototype by building visualizations in live JavaScript notebooks. Collaborate with your team and decide which concepts to build out.
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Seamlessly deploy to Observable. Test before you ship, use automatic deploy-on-commit, and ensure your projects are always up-to-date.