Exercise 4

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8">
		<title>Chicago Fed Loans to Individuals (in billions)</title>
		<script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
		<style type="text/css">
			
			body {
				background-color: white;
				font-family: Helvetica;
			}

svg {
				background-color: white;
			}
			rect:hover {
				fill: black;
			}

.axis path,
			.axis line {
				fill:none;
				stroke: black;
				shape-rendering: crispEdges;
			}

.axis text {
				font-family: sans-serif;
				font-size: 11px;
			}

.y.axis path,
			.y.asix line {
				opacity: 0;
			}

</style>
	</head>
	<body>
		<h1>Chicago Fed Loans to Individuals (in billions)</h1>
		<p> Dollar amount of Individual Loans the Chicago Fed held from 1966 to 2012; Source: <a href="https://fdic.gov">FDIC</a>
		<script type="text/javascript">

var w = 500;
			var h = 600; 
			var padding = [ 20, 30, 30, 50 ];

var widthScale = d3.scale.linear()
								.range([ 0, w - padding[1] - padding[3] ]);

var heightScale = d3.scale.ordinal()
								.rangeRoundBands([ padding[0], h - padding[2] ], 0.1);

var xAxis = d3.svg.axis()
							.scale(widthScale)
							.orient("bottom");

var yAxis = d3.svg.axis()
							.scale(heightScale)
							.orient("left");

var svg = d3.select("body")
						.append("svg")
						.attr("width", w)
						.attr("height", h);

d3.csv("ChicagoFDIC.csv", function(data) {

data.sort(function(a, b) {
					return d3.descending(+a.individualloans, +b.individualloans);

});

widthScale.domain([ 0, d3.max(data, function(d) {
					return +d.individualloans;
				})]);

heightScale.domain(data.map(function(d) { return d.Year; } ));

var rects = svg.selectAll("rect")
								.data(data)
								.enter()
								.append("rect");

rects.attr("x", padding[3])
					.attr("y", function(d) {
						return heightScale(d.Year);
					})
					.attr("width", function(d) {
						return widthScale(d.individualloans);
					})
					.attr("height", heightScale.rangeBand())
					.attr("fill", "lightblue")
					.append("title")
					.text(function(d) {
						return "In " + d.Year + ", the Chicago Fed held $" + d.individualloans + " billion in Loans to Individuals";
					});

svg.append("g")
					.attr("class", "x axis")
					.attr("transform", "translate(" + padding[3] + "," + (h - padding[2]) + ")")
					.call(xAxis);

svg.append("g")
					.attr("class", "y axis")
					.attr("transform", "translate(" + (padding[3] - 5) + ",0)")
					.call(yAxis);

});

</script>

</body>
</html>

Modified http://d3js.org/d3.v3.js to a secure url

https://d3js.org/d3.v3.js