Public
Edited
Aug 1, 2023
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chart = {
// Specify the chart’s dimensions.
const width = 928;
const height = 600;
const marginTop = 20;
const marginRight = 30;
const marginBottom = 30;
const marginLeft = 40;
// Create the positional scales.
const x = d3.scaleUtc()
.domain(d3.extent(sftemp, d => d.date))
.range([marginLeft, width - marginRight]);
const y = d3.scaleLinear()
.domain([d3.min(sftemp, d => d.low), d3.max(sftemp, d => d.high)]).nice(10)
.range([height - marginBottom, marginTop]);
// Create the area generator.
const area = d3.area()
.curve(d3.curveStep)
.x(d => x(d.date))
.y0(d => y(d.low))
.y1(d => y(d.high));
// Create the SVG container.
const svg = d3.create("svg")
.attr("width", width)
.attr("height", height)
.attr("viewBox", [0, 0, width, height])
.attr("style", "max-width: 100%; height: auto; height: intrinsic;");
// Add the area path.
svg.append("path")
.datum(sftemp)
.attr("fill", "steelblue")
.attr("d", area);
// Add the horizontal axis.
svg.append("g")
.attr("transform", `translate(0,${height - marginBottom})`)
.call(d3.axisBottom(x).ticks(width / 80).tickSizeOuter(0))
.call(g => g.select(".domain").remove());
// Add the vertical axis, a grid and an axis label.
svg.append("g")
.attr("transform", `translate(${marginLeft},0)`)
.call(d3.axisLeft(y))
.call(g => g.select(".domain").remove())
.call(g => g.selectAll(".tick line").clone()
.attr("x2", width - marginLeft - marginRight)
.attr("stroke-opacity", 0.1))
.call(g => g.append("text")
.attr("x", -marginLeft)
.attr("y", 10)
.attr("fill", "currentColor")
.attr("text-anchor", "start")
.text("↑ Temperature (°F)"));
return svg.node();
}
sftemp = FileAttachment("temp.csv").csv({typed: true})
Plot.plot({
y: {label: "Temperature (°F)", grid: true},
marks: [Plot.areaY(sftemp, {x: "date", y1: "low", y2: "high", fill: "steelblue", curve: "step"})]
})
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
