D3 Examples - Immigrant population of Canadian provinces

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<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>Canadian population by immigrant status</title>
        <script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
        <style type="text/css">
            
            body {
                background-color: white;
                font-family: Georgia, serif;
            }
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            h1 {
                font-size: 24px;
                margin: 0px 0 20px 0;
            }
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            p {
                font-size: 14px;
                margin: 10px 0 10px 0;
            }
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            svg {
                background-color: white;
            }
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            rect:hover {
                fill: #cc0000;
            }
            
            .axis path,
            .axis line {
                fill: none;
                stroke: black;
                shape-rendering: crispEdges;
            }
            
            .axis text {
                font-family: sans-serif;
                font-size: 11px;
            }
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            .y.axis path,
            .y.axis line {
                opacity: 0;
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        <h1>Immigrant population of Canadian provinces</h1>
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        <p>Immigrants are persons who are, or have ever been, landed immigrants in Canada. A landed immigrant is a person who has been granted the right to live in Canada permanently by immigration authorities. Some immigrants have resided in Canada for a number of years, while others are more recent arrivals. Most immigrants are born outside Canada, but a small number were born in Canada.</p>
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        <script type="text/javascript">     
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            var w = 700;
            var h = 300;
            var padding = [ 20, 10, 30, 150 ];  //Top, right, bottom, left
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            var widthScale = d3.scale.linear()
                                .range([ 0, w - padding[1] - padding[3] ]);
            
            var heightScale = d3.scale.ordinal()
                                .rangeRoundBands([ padding[0], h - padding[2] ], 0.1);
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​
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            var xAxis = d3.svg.axis()
                            .scale(widthScale)
                            .orient("bottom");
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            var yAxis = d3.svg.axis()
                            .scale(heightScale)
                            .orient("left");
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            var svg = d3.select("body")
                        .append("svg")
                        .attr("width", w)
                        .attr("height", h);
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            d3.csv("population-immigrant-status-and-period_2006_canada.csv", function(data) {
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                data.sort(function(a, b) {
                    return d3.descending(+a.ImmigrantPopulation, +b.ImmigrantPopulation);
                });
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                widthScale.domain([ 0, d3.max(data, function(d) {
                    return +d.ImmigrantPopulation;
                }) ]);
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                heightScale.domain(data.map(function(d) { return d.GeographicName; } ));
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                var rects = svg.selectAll("rect")
                                .data(data)
                                .enter()
                                .append("rect");
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                rects.attr("x", padding[3])
                    .attr("y", function(d) {
                        return heightScale(d.GeographicName);
                    })
                    .attr("width", function(d) {
                        return widthScale(d.ImmigrantPopulation);
                    })
                    .attr("height", heightScale.rangeBand())
                    .attr("fill", "#E67D23")
                    .append("title")
                    .text(function(d) {
                        return d.GeographicName + "'s immigrant population is " + d.ImmigrantPopulation;
                    });
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                svg.append("g")
                    .attr("class", "x axis")
                    .attr("transform", "translate(" + padding[3] + "," + (h - padding[2]) + ")")
                    .call(xAxis);
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                svg.append("g")
                    .attr("class", "y axis")
                    .attr("transform", "translate(" + padding[3] + ",0)")
                    .call(yAxis);
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            });
            
        </script>
        
        <p>2006 counts, for Canada, provinces and territories. <br>
Source: <a href="https://www12.statcan.ca/census-recensement/2006/dp-pd/hlt/97-557/T403-eng.cfm?Lang=E&T=403&GH=4&SC=1&S=99&O=A">Statistics Canada</a>, 2006</p>
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