CampaignSpendingScatterplot

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8">
		<title>Module 4 Exercise</title>
		<script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
		<style type="text/css">
			
			body {
				background-color: white;
				font-family: Helvetica, sans-serif;
			}

h1 {
				font-size: 28px;
				margin: 0;
			}

p {
				font-size: 14px;
				margin: 5;
			}

svg {
				background-color: white;
			}

circle:hover {
				opacity:0.5;
			}
			
			.axis path,
			.axis line {
				fill: none;
				stroke: black;
				shape-rendering: crispEdges;
			}
			
			.axis text {
				font-family: sans-serif;
				font-size: 11px;
			}

</style>
	</head>
	<body>

<h1>UKIP Gives Tories Run for Their Money 
			in 2014 European Elections</h1>

<p>Snapshot of how the four U.K. political parties who contested the May 2014 European Parliament elections split their campaign spending between England and Scotland. Source: <a href="https://search.electoralcommission.org.uk">The Electoral Commission</a> as of April 2015.</p>

var w = 500;
			var h = 500;
			var padding = [ 10, 20, 40, 60];  //Top, right, bottom, left

var xScale = d3.scale.linear()
								.range([ padding[3],w - padding[1] ]);
			
			var yScale = d3.scale.linear()
								.range([ padding[0], h - padding[2] ]);

var commasFormatter = d3.format(",.0f");

var xAxis = d3.svg.axis()
							.scale(xScale)
							.orient("bottom")
							.ticks(5)
							.tickFormat(function(d) { return "£" + commasFormatter(d);})
							.outerTickSize(0);

var yAxis = d3.svg.axis()
							.scale(yScale)
							.orient("left")
							. ticks(10)
							.tickFormat(function(d) { return "£" + commasFormatter(d);})
							.outerTickSize(0);

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

d3.csv("CampaignSpending2.csv", function(data) {

xScale.domain([d3.min(data,function(d) {
					return +d.EnglandSpending;}),d3.max(data, function(d) {
					return +d.EnglandSpending;
				}) ]);

yScale.domain([d3.max(data,function(d) {
					return +d.ScotlandSpending;}),d3.min(data, function(d) {
					return +d.ScotlandSpending;
				}) ]);

var circles = svg.selectAll("circle")
								.data(data)
								.enter()
								.append("circle");

circles.attr("cx", function(d) {
						return xScale(d.EnglandSpending);
					})
					.attr("cy", function(d) {
						return yScale(d.ScotlandSpending);
					})
					.attr("r",0)
					.attr("fill", function(d){
						if (d.PoliticalParty=="Conservative Party"){
							return "blue"}
						else if (d.PoliticalParty=="Labour Party"){
							return "red"}
						else if (d.PoliticalParty=="Liberal Democrats"){return "orange"}
						else if (d.PoliticalParty=="UK Independence Party (UKIP)"){return "purple"}
					;})

.append("title")
					.text(function(d) {
						return d.PoliticalParty + " spent " + d.EnglandSpending + " pounds in England and "+d.ScotlandSpending + " pounds in Scotland on " + d.SpendingDate
					});

svg.append("g")
					.attr("class", "x axis")
					.attr("transform", "translate(0," + (h - padding[2] + 10) + ")")
					.call(xAxis);

svg.append("g")
					.attr("class", "y axis")
					.attr("transform", "translate(" + (padding[3] - 10) + ",0)")
					.call(yAxis);

circles.sort(function(a, b) {
					return d3.ascending(+a.TotalSpending, +b.TotalSpending);
					})
					.transition()
					.delay(function(d, i) {
						return i*5;
					})
					.duration(2500)
					.attr("r", 5);

svg.append("text")
  				.attr("x",w - 50)
  				.attr("y",h-15)
  				.attr("font-size","10px")
  				.text("England");

svg.append("text")
  				.attr("x",w - 50)
  				.attr("y",h-2)
  				.attr("font-size","10px")
  				.text("Spending");

svg.append("text")
  				.attr("x",0)
  				.attr("y",12)
  				.attr("font-size","10px")
  				.text("Scotland");

svg.append("text")
  				.attr("x",0)
  				.attr("y",25)
  				.attr("font-size","10px")
  				.text("Spending");

});
  var Parties = ['Conservative Party','Labour Party','Liberal Democrats','U.K. Independence Party'];

var legend = svg.selectAll(".legend")
				.data(Parties)
				.enter()
				.append("g")
  				.attr("class", "legend")
  				.attr("transform","translate("+ 0.75*w+","+0.75*h+")");

legend.append("circle")
				.attr("cx", 0)
  				.attr("cy", function(d,i){
  						return 15 * i;})
  				.attr("r",5)
  				.style('fill', function(d,i){
						if (i==0){
							return 'blue'}
						else if (i==1){
							return 'red'}
						else if (i==2){return 'orange'}
						else if (i==3){return 'purple'}
					;})

legend.append("text")
  				.attr("x",10)
  				.attr("y",function(d,i){
  					return 5 + 15 * i;
  				})
  				.attr('font-size','10px')
  				.text(function(d,i){
  					return Parties[i];
  				})

</script>

</body>
</html>

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

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