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Create a Bar Chart
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license: mit |
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
.bar { | |
fill: #4f5cd7; | |
} | |
.bar:hover { | |
fill: #872814; | |
} | |
.axis--x path { | |
display: none; | |
} | |
</style> | |
<svg width="960" height="500"></svg> | |
<script src="//d3js.org/d3.v4.min.js"></script> | |
<script> | |
const svg = d3.select("svg"); | |
const margin = { | |
top: 20, | |
right: 20, | |
bottom: 30, | |
left: 40 | |
}; | |
const width = Number(svg.attr("width")) - margin.left - margin.right; | |
const height = Number(svg.attr("height")) - margin.top - margin.bottom; | |
const x = d3.scaleBand().rangeRound([0, width]).padding(0.1); | |
const y = d3.scaleLinear().rangeRound([height, 0]); | |
const g = svg.append("g") | |
.attr("transform", `translate(${margin.left},${margin.top})`); | |
d3.tsv("languages.tsv", typeConversion, function(error, data) { | |
if (error) throw error; | |
x.domain(data.map(d => d.language)); | |
y.domain([0, d3.max(data, d => d.frequency)]); | |
g.append("g") | |
.attr("class", "axis axis--x") | |
.attr("transform", `translate(0,${height})`) | |
.call(d3.axisBottom(x)); | |
g.append("g") | |
.attr("class", "axis axis--y") | |
.call(d3.axisLeft(y).ticks(10, "%")) | |
.append("text") | |
.attr("transform", "rotate(-90)") | |
.attr("y", 6) | |
.attr("dy", "0.71em") | |
.attr("text-anchor", "end") | |
.text("Frequency"); | |
g.selectAll(".bar") | |
.data(data) | |
.enter().append("rect") | |
.attr("class", "bar") | |
.attr("x", d => x(d.language)) | |
.attr("y", d => y(d.frequency)) | |
.attr("width", x.bandwidth()) | |
.attr("height", d => height - y(d.frequency)) | |
.attr("class", "") | |
.attr('fill', d => d.language === 'Italian' ? '#1ac81e' : '#4f5cd7'); | |
}); | |
function typeConversion(d) { | |
d.frequency = Number(d.frequency); | |
return d; | |
} | |
</script> |
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language | frequency | |
---|---|---|
Spanish | 0.42 | |
Portuguese | 0.15 | |
French | 0.28 | |
Italian | 0.15 | |
Romanian | 0.05 |
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