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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
body { | |
font: 10px sans-serif; | |
} | |
.bar rect { | |
fill: steelblue; | |
shape-rendering: crispEdges; | |
} | |
.bar text { | |
fill: #fff; | |
} | |
.axis path, .axis line { | |
fill: none; | |
stroke: #000; | |
shape-rendering: crispEdges; | |
} | |
</style> | |
<body> | |
<script src="//d3js.org/d3.v3.min.js"></script> | |
<script> | |
// Generate a Bates distribution of 10 random variables. | |
var values = d3.range(1000).map(d3.random.bates(10)); | |
// A formatter for counts. | |
var formatCount = d3.format(",.0f"); | |
var margin = {top: 10, right: 30, bottom: 30, left: 30}, | |
width = 960 - margin.left - margin.right, | |
height = 500 - margin.top - margin.bottom; | |
var x = d3.scale.linear() | |
.domain([0, 1]) | |
.range([0, width]); | |
// Generate a histogram using twenty uniformly-spaced bins. | |
var data = d3.layout.histogram() | |
.bins(x.ticks(10)) | |
(values); | |
var y = d3.scale.linear() | |
.domain([0, d3.max(data, function(d) { return d.y; })]) | |
.range([height, 0]); | |
var xAxis = d3.svg.axis() | |
.scale(x) | |
.orient("bottom"); | |
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 + ")"); | |
var bar = svg.selectAll(".bar") | |
.data(data) | |
.enter().append("g") | |
.attr("class", "bar") | |
.attr("transform", function(d) { return "translate(" + x(d.x) + "," + y(d.y) + ")"; }); | |
bar.append("rect") | |
.attr("x", 1) | |
.attr("width", x(data[0].dx) - 1) | |
.attr("height", function(d) { return height - y(d.y); }); | |
bar.append("text") | |
.attr("dy", ".75em") | |
.attr("y", 6) | |
.attr("x", x(data[0].dx) / 2) | |
.attr("text-anchor", "middle") | |
.text(function(d) { return formatCount(d.y); }); | |
svg.append("g") | |
.attr("class", "x axis") | |
.attr("transform", "translate(0," + height + ")") | |
.call(xAxis); | |
</script> |
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