CT town municipal data points

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<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>Line Chart with Multiple Lines</title>
        <script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
        <style type="text/css">
            
            body {
                background-color: white;
                font-family: Helvetica, Arial, sans-serif;
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h1 {
                font-size: 24px;
                margin: 0;
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p {
                font-size: 14px;
                margin: 10px 0 0 0;
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svg {
                background-color: white;
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circle:hover {
                fill: orange;
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            .axis path,
            .axis line {
                fill: none;
                stroke: black;
                shape-rendering: crispEdges;
            }
            
            .axis text {
                font-family: sans-serif;
                font-size: 11px;
            }

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    </head>
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<h1>CT Town Fiscal Spending</h1>

<p>CT Fiscal Spending by Town. Source: <a href="https://data.ct.gov/Government/Municipal-Fiscal-Indicators-2007-2012/h7h2-manp">CT Office of Policy and Management, Intergovernmental Policy Division</a>, 2014</p>

//Dimensions and padding
            var w = 900;
            var h = 900;
            var padding = [ 20, 10, 50, 100 ];  //Top, right, bottom, left

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

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

//Configure axis generators
            var xAxis = d3.svg.axis()
                            .scale(xScale)
                            .orient("bottom")
                            .ticks(15)
                            .tickFormat(function(d) {
                                return dateFormat(d);
                            });

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

//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 area = d3.svg.area()
                .x(function(d) {
                    return xScale(dateFormat.parse(d.year));
                })
                .y0(h - padding[2])
                .y1(function(d) {
                    return yScale(d.amount);
                });

//Create the empty SVG image
            var svg = d3.select("body")
                        .append("svg")
                        .attr("width", w)
                        .attr("height", h);

//Load data
            
            d3.csv("totalRevenue.csv", function(data) {
                d3.csv("totalAssets.csv", function(data2) {

var years = ["2007","2008","2009","2010","2011","2012"];

var dataset = [];

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

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

//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 totalRevenue data array
                                //for this city
                                dataset[i].totalRevenue.push({
                                    year: years[j],
                                    amount: data[i][years[j]]
                                });

dataset[i].totalAssets.push({
                                    year: years[j],
                                    amount: data2[i][years[j]]
                                });
                            }
                        }
                    }
                    
                    //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);

//Set scale domains
                    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.totalRevenue, function(d) {
                                return +d.amount;
                            });
                        }),
                        0
                    ]);

//Make a group for each city
                    var groups = svg.selectAll("g")
                        .data(dataset)
                        .enter()
                        .append("g");

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

//Within each group, create a new line/path,
                    //binding just the totalRevenue data to each one
                    groups.selectAll("path")
                        .data(function(d) {
                            return [ d.totalRevenue ];
                        })
                        .enter()
                        .append("path")
                        .attr("class", "line")
                        .attr("d", line)
                        .attr("fill", "none")
                        .attr("stroke", "steelblue")
                        .attr("stroke-width", 1);

groups.selectAll("path")
                        .data(function(d) {
                            return [ d.totalAssets ];
                        })
                        .enter()
                        .append("path")
                        .attr("class", "line")
                        .attr("d", line)
                        .attr("fill", "none")
                        .attr("stroke", "red")
                        .attr("stroke-width", 1);

//Axes
                    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]) + ",0)")
                        .call(yAxis);

});
                //End USA data load function
            }); // end load revenue data function

</script>

</body>
</html>

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

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