D3 Examples - Exercise 6

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<!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;
            }
            circle:hover {
                fill: lightblue;
            }
​
            .axis path,
            .axis line {
                fill:none;
                stroke: black;
                shape-rendering: crispEdges;
            }
​
            .axis text {
                font-family: sans-serif;
                font-size: 11px;
            }
​
​
        </style>
    </head>
    <body>
        <h1>Relationship of Loans to Individuals and Net Interest Income (in billions)</h1>
        <p> This scatterplot shows the relationship between the Chicago Fed's Loans to Individuals and its Net Interest Income for a given year between 1966 and 2012; Source: <a href="https://fdic.gov">FDIC</a>
​
        <p>Loans to Individuals are plotted on the X axis; Net Interest Income is plotted on the Y axis</p>
        <script type="text/javascript"> 
​
            var w = 800;
            var h = 400; 
            var padding = [ 20, 50, 30, 50 ];
​
            var dateFormat = d3.time.format("%Y");
​
            var xScale = d3.time.scale()
                                .range([ padding[3], w - padding[1] - padding[3] ]);
​
            var yScale = d3.scale.linear()
                                .range([ padding[0], h - padding[2] ]);
​
            var xAxis = d3.svg.axis()
                            .scale(xScale)
                            .orient("bottom")
                            .ticks (10)
                            .tickFormat(function(d) {   
                                return dateFormat(d);
                            });
​
            var yAxis = d3.svg.axis()
                            .scale(yScale)
                            .orient("left");
​
            var line = d3.svg.line()
                .x(function(d) {
                        return xScale(dateFormat.parse(d.Year));
                })
                .y(function(d) {
                        return yScale(d.individualloans);
                });
​
            var interestline = d3.svg.line()
                .x(function(d) {
                        return xScale(dateFormat.parse(d.Year));
                })
                .y(function(d) {
                        return yScale(d.netinterestincome);
                });
​
            var svg = d3.select("body")
                        .append("svg")
                        .attr("width", w)
                        .attr("height", h);
​
​
​
            d3.csv("ChicagoFDIC.csv", function(data) {
​
                xScale.domain([ 
                    d3.min(data, function(d) {
                        return dateFormat.parse(d.Year);
                    }),
                    d3.max(data, function(d) {
                        return dateFormat.parse(d.Year);
                    }) 
                ]);
​
                yScale.domain([ 
                    d3.max(data, function(d) {
                        return +d.individualloans;
                }), 0 ]);
​
                svg.data([ data ])
                    .append("path")
                    .attr("class", "Loans to Individuals")
                    .attr("d", line)
                    .attr("fill", "none")
                    .attr("stroke", "darkblue")
                    .attr("stroke-width", 2);
​
                svg.data([ data ])
                    .append("path")
                    .attr("class", "Loans to Individuals")
                    .attr("d", interestline)
                    .attr("fill", "none")
                    .attr("stroke", "red")
                    .attr("stroke-width", 2);
​
                svg.append("g")
                    .attr("class", "x axis")
                    .attr("transform", "translate(0," + (h - padding[2]) + ")")
                    .call(xAxis);
​
                svg.append("g")
                    .attr("class", "y axis")
                    .attr("transform", "translate(" + (padding[3] - 5) + ",0)")
                    .call(yAxis);
​
            });
​
​
        </script>
 
    </body>
</html>
    