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Youth unemployment rate in selected european countries.

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8">
		<title></title>
		<script type="text/javascript" src="https://d3js.org/d3.v3.min.js"></script>
		<style type="text/css">

body {
				background-color: white;
				font-family: Verdana;
			}

svg {
				background-color: white;
			}

text {
				fill: black;
			}

.line {
				fill: none;
				stroke: grey;
				stroke-width: 2;
				opacity: 0.5;
			}

.line:hover {
				stroke-width: 3;
				stroke: black;
				opacity: 1;

}

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

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

g.highlight_eu path {
				stroke: steelblue;
				stroke-width: 6;
				opacity: 1;
			}

g.highlight_greece path {
				stroke: green;
				stroke-width: 3;
				opacity: 1;
			}

g.highlight_germany path {
				stroke: indianred;
				stroke-width: 3;
				opacity: 1;
			}

g.highlight_spain path {
				stroke: purple;
				stroke-width: 3;
				opacity: 1;
			}

g.highlight_netherlands path {
				stroke: orange;
				stroke-width: 3;
				opacity: 1;
			}

.highlight_eu {
				fill: steelblue;
				text-anchor: end;
				font-weight: bold;
			}

.highlight_greece {
				fill: green;
				text-anchor: end;
				font-weight: bold;

}

.highlight_germany {
				fill: indianred;
				text-anchor: end;
				font-weight: bold;

}

.highlight_spain {
				fill: purple;
				text-anchor: end;
				font-weight: bold;
			}

.highlight_netherlands {
				fill: orange;
				text-anchor: end;
				font-weight: bold;
			}

</style>
	</head>
	<body>

<h2>Youth unemployment rate in selected european countries</h2>
		<p>This dataset shows the evolution of youth unemployment over the course of two decades.<br>
		Thanks to <a href:"https://bl.ocks.org/alebusi/dea84684cfdbeb6f59c0">Alebusi</a>
		<</p>

var w = 900
			var h = 500

var padding = [ 50, 50, 50, 50 ];  //Top, right, bottom, left

//Set up date formatting and years
			var dateFormat = d3.time.format("%Y");

var xScale = d3.time.scale()
							.range ([ padding[1], w - padding[3] ]);

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

var xAxis = d3.svg.axis()
							.scale(xScale)
							.orient("bottom")
							.ticks(30);

var yAxis = d3.svg.axis()
							.scale(yScale)
							.orient("left")
							.ticks(15);

//Configure line generator
			var line = d3.svg.line()
				.x(function(d) {
					return xScale(dateFormat.parse(d.year));
				})
				.y(function(d) {
					return yScale(+d.amount);
				});

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

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

//Data is loaded in, but we need to restructure it.
				//Remember, each line requires an array of x/y pairs;
				//that is, an array of arrays, like so:
				//
				//	[ [x: 1, y: 1], [x: 2, y: 2], [x: 3, y: 3] ]
				//
				//We, however, are using 'year' as x and 'amount' as y.
				//We also need to know which country belongs to each
				//line, so we will build an array of objects that is
				//structured like this:
				/*

[
						{
							country: "Australia",
							emissions: [
										{ year: 1961, amount: 90589.568 },
										{ year: 1962, amount: 94912.961 },
										{ year: 1963, amount: 101029.517 },
										…
									   ]
						},
						{
							country: "Bermuda",
							percentage: [
										{ year: 1961, amount: 176.016 },
										{ year: 1962, amount: 157.681 },
										{ year: 1963, amount: 150.347 },
										…
									   ]
						},
						…
					 ]

*/
				//Note that this is an array of objects. Each object
				//contains two values, 'country' and 'emissions'.
				//The 'emissions' value is itself an array, containing
				//more objects, each one holding 'year' and 'amount' values.

//New array with all the years, for referencing later
				var years = ["1991", "1992", "1993", "1994", "1995", "1996", "1997", "1998", "1999", "2000", "2001", "2002", "2003", "2004", "2005", "2006", "2007", "2008", "2009", "2010", "2011", "2012", "2013"];

//Create a new, empty array to hold our restructured dataset
				var dataset = [];

//Loop once for each row in data
				for (var i = 0; i < data.length; i++) {

//Create new object with this country's name and empty array
					dataset[i] = {
						country: data[i].countryName,
						percentage: []
					};

//Loop through all the years
					for (var j = 0; j < years.length; j++) {

// If value is not empty
						if (data[i][years[j]]) {
							//Add a new object to the percentage data array
							//for this country
							dataset[i].percentage.push({
								year: years[j],
								amount: data[i][years[j]]
							});
						}

}

//	console.log(dataset);
				//Uncomment to log the original data to the console
				// console.log(data);

//Uncomment to log the newly restructured dataset to the console
				// console.log(dataset);

xScale.domain([
					d3.min(years, function(d) {
						return dateFormat.parse(d);
					}),
					d3.max(years, function(d) {
						return dateFormat.parse(d);
					})
				]);

yScale.domain([
					d3.max(dataset, function(d) {
						return d3.max(d.percentage, function(d) {
							return +d.amount;
						});
					}),
					0
				]);

var groups = svg.selectAll("g")
					.data(dataset)
					.enter()
					.append("g")
					.classed("highlight_eu", function(d) {

if (d.country == "European Union") {
							return true;
						} else {
							return false;
						}

})
					.classed("highlight_greece", function(d) {

if (d.country == "Greece") {
							return true;
						} else {
							return false;
						}

})

.classed("highlight_germany", function(d) {

if (d.country == "Germany") {
							return true;
						} else {
							return false;
						}

})

.classed("highlight_spain", function(d) {

if (d.country == "Spain") {
							return true;
						} else {
							return false;
						}

})

.classed("highlight_netherlands", function(d) {

if (d.country == "Netherlands") {
							return true;
						} else {
							return false;
						}

});

// var labels = groups.selectAll("text")
			// 		.data(data)
			// 		.enter()
			// 		.append("text");

//Append a title with the country name (so we get easy tooltips)
				groups.append("title")
					.text(function(d) {
						return d.country;
					});

//Within each group, create a new line/path,
				//binding just the emissions data to each one
				groups.selectAll("path")
					.data(function(d) {
						return [ d.percentage ];
					})
					.enter()
					.append("path")
					.attr("class", "line")
					.attr("d", line);

//Make lines get to the front on mouseover

d3.selectAll("path")

.on("mouseover", function(d) {
		            	d3.select(this)
		                this.parentNode.parentNode.appendChild(this.parentNode);
		            })
		            .on("mouseout", function(d) {
		                    d3.select(this)
		            });

svg.append("text")
		    	.attr("class", "highlight_eu")
		    	.attr("x", w)
		    	.attr("y", padding[0] + 15)
		    	.attr("font-size", 10)
		    	.text("Europe");

svg.append("text")
		    	.attr("class", "highlight_greece")
		    	.attr("x", w )
		    	.attr("y", padding[0] + 30)
		    	.attr("font-size", 10)
		    	.text("Greece");

svg.append("text")
		    	.attr("class", "highlight_germany")
		    	.attr("x", w)
		    	.attr("y", padding[0] + 45)
		    	.attr("font-size", 10)
		    	.text("Germany");

svg.append("text")
		    	.attr("class", "highlight_spain")
		    	.attr("x", w)
		    	.attr("y", padding[0] + 60)
		    	.attr("font-size", 10)
		    	.text("Spain");

svg.append("text")
		    	.attr("class", "highlight_netherlands")
		    	.attr("x", w )
		    	.attr("y", padding[0] + 75)
		    	.attr("font-size", 10)
		    	.text("Netherlands");

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

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

});

</script>

</body>
</html>

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

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