<!DOCTYPE html>
<html>
<head>
<title>Kernel Density Estimation</title>
<link rel="stylesheet" type="text/css" href="kde_1.css"/>
<script type="text/javascript" src="d3.js"></script>
<script type="text/javascript" src="d3.layout.js"></script>
<script type="text/javascript" src="science.v1.js"></script>
</head>
<body>
<script type="text/javascript" src="kde_1.js"></script>
</body>
</html>
[
79, 54, 74, 62, 85, 55, 88, 85, 51, 85, 54, 84, 78, 47, 83, 52, 62, 84, 52, 79, 51, 47, 78, 69, 74, 83, 55, 76, 78, 79, 73, 77, 66, 80, 74, 52, 48, 80, 59, 90, 80, 58, 84, 58, 73, 83, 64, 53,
82, 59, 75, 90, 54, 80, 54, 83, 71, 64, 77, 81, 59, 84, 48, 82, 60, 92, 78, 78, 65, 73, 82, 56, 79, 71, 62, 76, 60, 78, 76, 83, 75, 82, 70, 65, 73, 88, 76, 80, 48, 86, 60, 90, 50, 78, 63, 72,
84, 75, 51, 82, 62, 88, 49, 83, 81, 47, 84, 52, 86, 81, 75, 59, 89, 79, 59, 81, 50, 85, 59, 87, 53, 69, 77, 56, 88, 81, 45, 82, 55, 90, 45, 83, 56, 89, 46, 82, 51, 86, 53, 79, 81, 60, 82, 77,
76, 59, 80, 49, 96, 53, 77, 77, 65, 81, 71, 70, 81, 93, 53, 89, 45, 86, 58, 78, 66, 76, 63, 88, 52, 93, 49, 57, 77, 68, 81, 81, 73, 50, 85, 74, 55, 77, 83, 83, 51, 78, 84, 46, 83, 55, 81, 57,
76, 84, 77, 81, 87, 77, 51, 78, 60, 82, 91, 53, 78, 46, 77, 84, 49, 83, 71, 80, 49, 75, 64, 76, 53, 94, 55, 76, 50, 82, 54, 75, 78, 79, 78, 78, 70, 79, 70, 54, 86, 50, 90, 54, 54, 77, 79, 64,
75, 47, 86, 63, 85, 82, 57, 82, 67, 74, 54, 83, 73, 73, 88, 80, 71, 83, 56, 79, 78, 84, 58, 83, 43, 60, 75, 81, 46, 90, 46, 74
]
body {
font: 10px sans-serif;
}
path {
stroke: #000;
stroke-width: 1.5px;
fill: none;
}
// Based on http://bl.ocks.org/900762 by John Firebaugh
d3.json("faithful.json", function(faithful) {
data = faithful;
var w = 800,
h = 400,
x = d3.scale.linear().domain([30, 110]).range([0, w]);
bins = d3.layout.histogram().frequency(false).bins(x.ticks(60))(data),
max = d3.max(bins, function(d) { return d.y; }),
y = d3.scale.linear().domain([0, .1]).range([0, h]),
kde = science.stats.kde().sample(data);
var vis = d3.select("body")
.append("svg")
.attr("width", w)
.attr("height", h);
/*var bars = vis.selectAll("g.bar")
.data(bins)
.enter().append("g")
.attr("class", "bar")
.attr("transform", function(d, i) {
return "translate(" + x(d.x) + "," + (h - y(d.y)) + ")";
});
bars.append("rect")
.attr("fill", "steelblue")
.attr("width", function(d) { return x(d.dx + 30) - 1; })
.attr("height", function(d) { return y(d.y); });*/
var line = d3.svg.line()
.x(function(d) { return x(d[0]); })
.y(function(d) { return h - y(d[1]); });
vis.selectAll("path")
.data(d3.values(science.stats.bandwidth))
.enter().append("path")
.attr("d", function(h) {
return line(kde.bandwidth(h)(d3.range(30, 110, .1)));
});
});