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name | value | |
---|---|---|
gini pre-tax | 0.413 |
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
.bar.total rect { | |
fill: steelblue; | |
} | |
.bar.positive rect { | |
fill: darkolivegreen; | |
} | |
.bar.negative rect { | |
fill: crimson; | |
} | |
.bar line.connector { | |
stroke: grey; | |
stroke-dasharray: 3; | |
} | |
.bar text { | |
fill: black; | |
font: 12px sans-serif; | |
text-anchor: middle; | |
} | |
.axis text { | |
font: 10px sans-serif; | |
} | |
.axis path, | |
.axis line { | |
fill: none; | |
stroke: #000; | |
shape-rendering: crispEdges; | |
} | |
</style> | |
<h1> Income inequality without taxes </h1> | |
<svg class="chart"></svg> | |
<script src="http://d3js.org/d3.v3.min.js"></script> | |
<script> | |
var margin = {top: 20, right: 30, bottom: 30, left: 40}, | |
width = 960 - margin.left - margin.right, | |
height = 500 - margin.top - margin.bottom, | |
padding = 0.3; | |
// Prepare Scales, Axis and chartcontainer | |
var x = d3.scale.ordinal() | |
.rangeRoundBands([0, width], padding); | |
var y = d3.scale.linear() | |
.range([height, 0]); | |
var xAxis = d3.svg.axis() | |
.scale(x) | |
.orient("bottom"); | |
var yAxis = d3.svg.axis() | |
.scale(y) | |
.orient("left") | |
var chart = d3.select(".chart") | |
.attr("width", width + margin.left + margin.right) | |
.attr("height", height + margin.top + margin.bottom) | |
.append("g") | |
.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
var formatNumber=d3.format(".2n") | |
/// Start with data | |
d3.csv("giniData0.csv", type, function(error, data) { | |
console.log(data) | |
// Transform data (i.e., finding cumulative values and total) for easier charting | |
var cumulative = 0; | |
for (var i = 0; i < data.length; i++) { | |
data[i].start = cumulative; | |
cumulative += data[i].value; | |
data[i].end = cumulative; | |
data[i].class = ( data[i].value >= 0 ) ? 'positive' : 'negative' | |
} | |
data.push({ | |
name: 'Gini post-tax', | |
end: cumulative, | |
start: 0, | |
class: 'total' | |
}); | |
// define domain based on data | |
x.domain(data.map(function(d) { return d.name; })); | |
y.domain([0.35, 0.45]); | |
// Call Axis | |
chart.append("g") | |
.attr("class", "x axis") | |
.attr("transform", "translate(0," + height + ")") | |
.call(xAxis); | |
chart.append("g") | |
.attr("class", "y axis") | |
.call(yAxis); | |
// databinding | |
var bar = chart.selectAll(".bar") | |
.data(data) | |
.enter().append("g") | |
.attr("class", function(d) { return "bar " + d.class }) | |
.attr("transform", function(d) { return "translate(" + x(d.name) + ",0)"; }); | |
// Create bar charts | |
bar.append("rect") | |
.attr("y", function(d) { return y( Math.max(d.start, d.end) ); }) | |
.attr("height", function(d) { return Math.abs( y(d.start) - y(d.end)); }) | |
.attr("width", x.rangeBand()) | |
.attr("clip-path", "url(#clip)") // clip the rectangle | |
chart.append("clipPath") | |
.attr("id","clip") | |
.append("rect") | |
.attr("width",width) | |
.attr("height",height); | |
// | |
bar.append("text") | |
.attr("x", x.rangeBand() / 2) | |
.attr("y", function(d) { return y(d.end) + 5; }) | |
.attr("dy", function(d) { return ((d.class=='negative') ? '-' : '') + "1.5em" }) | |
.text(function(d) { return formatNumber(d.end - d.start);}); | |
bar.filter(function(d) { return d.class != "total" }).append("line") | |
.attr("class", "connector") | |
.attr("x1", x.rangeBand() + 5 ) | |
.attr("y1", function(d) { return y(d.end) } ) | |
.attr("x2", x.rangeBand() / ( 1 - padding) - 5 ) | |
.attr("y2", function(d) { return y(d.end) } ) | |
chart.append("text") | |
.attr("class","ylegend") | |
.attr("x",0) | |
.attr("y",15) | |
.style("text-anchor", "end") | |
.style("font-size",13) | |
.attr("transform", "rotate(-90)") | |
.text("Gini-Coefficient"); | |
}); | |
function type(d) { | |
d.value = +d.value; | |
return d; | |
} | |
</script> |
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