Excercise 5: Cash for Care Scatterplot

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8">
		<title>Excercise module 4</title>
		<script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
		<style type="text/css">
			body{
				margin-left : 4em;
				margin-right : 4em;
			}
			svg {
				background-color: white;
			}
			
			.axis path,
			.axis line {
				fill: none;
				stroke: black;
				shape-rendering: crispEdges;
			}
			
			.axis text {
				font-family: Arial, sans-serif;
				font-size: 12px;
			}

</style>
	</head>
	<body>
		<h2>Cash for Care recipients</h2>
		<p>
			Number of cash for care reciptients in 2009 and 2014. 
			Male age groups shown in blue and women  in red.
			
			This is not a good encoding as is for this type of information.
		</p>

function drawYear(data,year1,year2){

var width = 500;
				var height = 350;

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

var padding = {
				  top: 50,
				  right: 20,
				  bottom: 20,
				  left: 50
				};

// Sort the data
				//data.sort(function(a, b) {
				//	return d3.ascending(parseInt(a["2005"]),parseInt(b["2005"]));
				//});

var xScale = d3.scale.linear()
								.range([ padding.left, width  - padding.right - padding.left ])
								.domain([0, d3.max(data, function(d) {
									return +d[year1];	
								})]);

var yScale = d3.scale.linear()
									.range([ padding.top, height - padding.bottom])
									.domain([ d3.max(data, function(d) {
										return +d[year2];	
									}),0]);

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

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

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

circles.attr("cx", function (d) {
						return xScale(+d[year1]);
					} )
					.attr("cy", function(d,i){
						return yScale(+d[year2]);
						
					})
					.attr("r",0.1)
					.attr("fill", function(d){
						// Different colors for each age group
						if(d["Category"].indexOf("Men") > -1) return "#3182bd";
						else return "#de2d26";
						})
					.append("title")
					.text(function(d){
						return d["Category"]+"  "+year1+": "+d[year1] + ", "+year2+": "+d[year2];
					});
					
				svg.append("g")
					.attr("class", "x axis")
					.attr("transform", "translate(" + 0 + "," + (height - padding.bottom + ")"))
					.call(xAxis);
				
				svg.append("g")
					.attr("class", "y axis")
					.attr("transform", "translate(" + (padding.left) + ",0)")
					.call(yAxis);

svg.append("text")
				    .attr("class", "x label")
				    .attr("text-anchor", "end")
				    .attr("x", width)
				    .attr("y", height - 6)
				    .text(year1);

svg.append("text")
   					.attr("class", "y label")
    				.attr("text-anchor", "end")
    				.attr("y", 6)
    				.attr("dy", ".75em")
    				.attr("transform", "rotate(-90)")
    				.text(year2);
    
    
				circles.transition()
					.delay(function(d, i) {
						return i*1000
						})
					.duration(1000)
					.attr("r",10);
				
			}
	
			//Load in contents of CSV file
			d3.csv("Number of Cash for Care recipients by year and sex2.csv", function(data) {
				drawYear(data,"2009","2014");
			})

</script>

</body>
</html>

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

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