The avatar for @palewire
Ben Welsh
News Applications Editor, Reuters
Published
Trump Tweets
Edited
Feb 28, 2019
Fork of Cumulative line chart of Trump tweets
3 stars
Trump Tweets
Trump's Twitter Terminology
Interactive line chart of Trump tweets
Cumulative line chart of Trump tweetsFilter Trump tweetsRandom Trump tweetTrump tweets
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d3 = require("d3@5")
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x = d3.scaleTime()
.domain(d3.extent(cumulativeByDate, d => d.date))
.range([margin, width - margin])
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y = d3.scaleLinear()
.domain([0, filteredTweets.length])
.range([height - margin, margin])
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line = d3.line()
.x(d => x(d.date))
.y(d => y(d.value))
.curve(d3[lineCurve])
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area = d3.area()
.x(d => x(d.date))
.y1(d => y(d.value))
.y0(d => y(0))
.curve(d3[lineCurve])
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xAxis = g => g
.attr("transform", `translate(0,${height - margin})`)
.call(d3.axisBottom(x))
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yAxis = g => g
.attr("transform", `translate(${margin},0)`)
.call(d3.axisLeft(y))
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function drawChart() {
const svg = d3.select(DOM.svg(width, height));
svg.append("path")
.datum(cumulativeByDate)
.attr("fill", areaColor)
.attr("d", area);

svg.append("path")
.datum(cumulativeByDate)
.attr("fill", "none")
.attr("stroke", lineColor)
.attr("stroke-width", lineWidth)
.attr("d", line);

svg.append("circle")
.attr("cx", x(filteredTweets.endDate))
.attr("cy", y(filteredTweets.length))
.attr("fill", lineColor)
.attr("r", circleRadius);
svg.append("g")
.call(xAxis);

svg.append("g")
.call(yAxis);
return svg.node();
}
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import {tweets} from "@palewire/trump-tweets"
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groupbyDate = d3.nest()
.key(d => d.dateString)
.rollup(d => d.length)
.entries(filteredTweets)
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dateLookup = groupbyDate.reduce((lookup, date) => (lookup[date.key] = date.value, lookup), {})
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dateFormatter = d3.timeFormat("%Y-%m-%d")
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cumulativeByDate = {
let runningCount = 0;
return filteredTweets.dateRange.map(d => {
let dateCount = dateLookup[dateFormatter(d)] || 0;
runningCount += dateCount;
return {date: d, value: runningCount};
});
}
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