As a mathematics student I found this visualization funny. I wanted to implement it.
It is extracted from the book Information is Beautiful.
data: MIT/Wellesley College magazine, Counterpoint (2001)
Last active
March 24, 2016 15:51
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IIB
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| subject | percent | |
|---|---|---|
| Studio Art | 0 | |
| Anthropology | 0.20 | |
| Neuroscience | 0.25 | |
| Art History | 0.37 | |
| Computer Science | 0.40 | |
| Spanish | 0.43 | |
| English | 0.50 | |
| French | 0.50 | |
| Philosophy | 0.57 | |
| History | 0.62 | |
| Economics | 0.65 | |
| Undecided | 0.68 | |
| Psychology | 0.70 | |
| International relations | 0.71 | |
| Biology | 0.72 | |
| Political Science | 0.73 | |
| Biochemistry | 0.83 | |
| Mathematics | 0.83 |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| font: 10px sans-serif; | |
| } | |
| .x.axis path { | |
| display: none; | |
| } | |
| .x.axis text { | |
| fill: #474747; | |
| font-size: 15px; | |
| } | |
| .y.axis { | |
| display: none; | |
| } | |
| </style> | |
| <body> | |
| <script src="https://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var margin = {top: 70, right: 20, bottom: 30, left: 20}, | |
| width = 400 - margin.left - margin.right, | |
| height = 800 - margin.top - margin.bottom; | |
| var percentFormat = d3.format("%"); | |
| var x = d3.scale.linear() | |
| .rangeRound([0, width]); | |
| var y = d3.scale.ordinal() | |
| .rangeRoundBands([0, height], .3); | |
| var xAxisTop = d3.svg.axis() | |
| .scale(x) | |
| .tickValues([0,0.5,1]) | |
| .tickFormat(percentFormat) | |
| .orient("top"); | |
| var xAxisBottom = d3.svg.axis() | |
| .scale(x) | |
| .tickValues([0,0.5,1]) | |
| .tickFormat(percentFormat) | |
| .orient("bottom"); | |
| var yAxis = d3.svg.axis() | |
| .scale(y) | |
| .ticks(1) | |
| .orient("left"); | |
| var color = d3.scale.ordinal() | |
| .range(["#8dd3c7","#bebada","#fb8072","#80b1d3","#fdb462","#b3de69","#b3b3b3","#bc80bd","#e5c494"]); | |
| var svg = d3.select('body').append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| d3.csv("data.csv", function(error, data) { | |
| x.domain([0,1]); | |
| y.domain(data.map(function(d) { return d.subject; })); | |
| var bar = svg.selectAll(".bar") | |
| .data(data) | |
| .enter().append("g"); | |
| bar.append("rect") | |
| .attr("x", function(d) { return x(0); }) | |
| .attr("y", function(d) { return y(d.subject); }) | |
| .attr("width", function(d) { return x(+d.percent); }) | |
| .attr("height", y.rangeBand()) | |
| .style("fill",function(d) { return color(d.subject); }); | |
| bar.append("text") | |
| .attr("x", x(0.01)) | |
| .attr("y", function(d) { return y(d.subject) + y.rangeBand()/2 + 3; }) | |
| .style("fill", function(d,i) { return i === 0 ? "#474747" : "#fff"; }) | |
| .text(function(d) { return d.subject; }); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .call(xAxisTop) | |
| .append("text") | |
| .attr("y", -40) | |
| .attr("x", -10) | |
| .style("text-anchor", "begin") | |
| .style('font-weight','bold') | |
| .text("% virgin student by university subject"); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxisBottom); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(yAxis); | |
| }); | |
| d3.select(self.frameElement).style("height", height + margin.top + margin.bottom + "px"); | |
| </script> |
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