D3 Examples - GreenHouse Emissions

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>Dot Plot with Date Scale and Axis</title>
        <script type="text/javascript" src="../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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            path:hover {
                stroke: orange;
                stroke-width:2;
            }
            
            path {
                stroke: #DEDEDE;
                stroke-width:2;
            }
            
            g.highlight path{
                stroke:steelblue;
                stroke-width:2;
            }
            
            .axis path,
            .axis line {
                fill: none;
                stroke: black;
                stroke-width:1;
                shape-rendering: crispEdges;
            }
            
            .axis text {
                font-family: sans-serif;
                font-size: 11px;
            }
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        </style>
    </head>
    <body>
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        <h1>Greenhouse Gas Emissions</h1>
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        <p>Canada's&rsquo; total GHG per capita, 1990-2012. Source: <a href="https://stats.oecd.org/Index.aspx?DataSetCode=AIR_GHG">OECD</a>, 2015</p>
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        <script type="text/javascript">     
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​
            var w = 500;
            var h = 600;
            var padding = [ 20, 10, 50, 30 ];  //Top, right, bottom, left
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​
​
            //Set up date formatting and years
            var dateFormat = d3.time.format("%Y");
​
​
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            var xScale = d3.time.scale()
                                .range([ padding[3], w - padding[1] - padding[3] ]);
            
            var yScale = d3.scale.linear()
                                .range([ padding[0], h - padding[2] ]);
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​
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            var xAxis = d3.svg.axis()
                            .scale(xScale)
                            .orient("bottom")
                            .ticks(15)
                            .tickFormat(function(d) {
                                return dateFormat(d);
                            });
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            var yAxis = d3.svg.axis()
                            .scale(yScale)
                            .orient("left");
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            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);
                })
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            var svg = d3.select("body")
                        .append("svg")
                        .attr("width", w)
                        .attr("height", h);
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d3.csv("greenhouse gases/greenhouse.csv", function(data) {
    console.log(data)
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var years = ["1990", "1991", "1992", "1993", "1994", "1995", "1996", "1997", "1998", "1999", "2000", "2001", "2002", "2003", "2004", "2005", "2006", "2007", "2008", "2009", "2010","2011","2012"];
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    var dataset=[];
    
    for (var i = 0; i<data.length; i++){
        dataset[i]={country: data[i].Country,emissions:[]};
        for (var j = 0; j<years.length;j++){
            if (data[i][years[j]]){
                dataset[i].emissions.push({
                    year: years[j],
                    amount:data[i][years[j]]
                });
            }
        }
    }
​
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    xScale.domain([ 
                    d3.min(years, function(d) {
                        return dateFormat.parse(d);
                    }),
                    d3.max(years, function(d) {
                        return dateFormat.parse(d);
                    })
                ]);
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                yScale.domain([ 
                    d3.max(dataset, function(d) {
                        return d3.max(d.emissions, function(d) {
                            return +d.amount;
                        });
                    }),
                    0
                ]);
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                var groups = svg.selectAll("g")
                    .data(dataset)
                    .enter()
                    .append("g")
                    .classed("highlight",function(d){
                        if (d.country=="Canada"){
                            return true;
                        } else{
                            return false;
                        }
                    });
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                groups.append("title")
                    .text(function(d) {
                        return d.country;
                    });
    
        console.log(dataset)
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                groups.selectAll("path")
                    .data(function(d) {
                        return [ d.emissions ];
                    })
                    .enter()
                    .append("path")
                    .attr("class", "line")
                    .attr("d", line)
                    .attr("fill", "none")
                    .attr("stroke-width",2);
    
                svg.append("g")
                    .attr("class", "x axis")
                    .attr("transform", "translate(0," + (h - padding[2]) + ")")
                    .call(xAxis);
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                svg.append("g")
                    .attr("class", "y axis")
                    .attr("transform", "translate(" + (padding[3]) + ",0)")
                    .call(yAxis);
​
            });
​
        </script>
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    </body>
</html>
    