D3 Examples - Immigrant vs non immigrant population in Canada

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<!DOCTYPE html>
<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 0px 0;
            }
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            p {
                font-size: 14px;
                margin: 10px 0 0px 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: 1;
            }
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        </style>
    </head>
    <body>
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        <h1>Immigrant vs non immigrant population in Canada</h1>
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        <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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        <script type="text/javascript">     
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            //Dimensions and padding
            var w = 650;
            var h = 500;
            var padding = [ 50, 10, 50, 70 ];  //Top, right, bottom, left
​
​
            //Set up scales
            var xScale = d3.scale.linear()
                                .range([ padding[3], w - padding[1] - padding[3] ]);
            
            var yScale = d3.scale.linear()
                                .range([ padding[0], h - padding[2] ]);
            
            //Set up formatter
            var commasFormatter = d3.format(",.0f")
​
​
            //Configure axis generators
            var xAxis = d3.svg.axis()
                            .scale(xScale)
                            .orient("bottom")
                            .ticks(7)
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            var yAxis = d3.svg.axis()
                            .scale(yScale)
                            .orient("left")
                            .ticks(7)
                            .tickFormat(function(d) {
                                return commasFormatter(d);
                            });
​
​
            //Create the empty SVG image
            var svg = d3.select("body")
                        .append("svg")
                        .attr("width", w)
                        .attr("height", h);
​
​
            //data
            d3.csv("population-immigrant-status-and-period_2006_canada.csv", function(data) {
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                xScale.domain([ 
                    d3.min(data, function(d) {
                        return +d.NonimmigrantPopulation;
                    }), 
                    d3.max(data, function(d) {
                        return +d.NonimmigrantPopulation;
                    })
                ]);
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                yScale.domain([
                    d3.max(data, function(d) {
                    return +d.NonimmigrantPopulation;
                    }),
                    d3.min(data, function(d) {
                        return +d.NonimmigrantPopulation;
                    })
                ]);
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                var circles = svg.selectAll("circle")
                                .data(data)
                                .enter()
                                .append("circle");
                
                circles.attr("cx", function(d) {
                        return xScale(d.ImmigrantPopulation);
                    })
                    .attr("cy", function(d) {
                        return yScale(d.NonimmigrantPopulation);
                    })
                    .attr("r", 0.1)
                    .attr("fill", "#E67D23")
                    .append("title")
                    .text(function(d) {
                        return d.GeographicName + " non immigrant population is " + d.NonimmigrantPopulation + " and " + d.ImmigrantPopulation + " is immigrant";
                    });
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                circles.sort(function(a, b) {
                        return d3.ascending(+a.ImmigrantPopulation, +b.ImmigrantPopulation);
                    })
                    .transition()
                    .delay(function(d, i) {
                        return i * 50;
                    })
                    .duration(500)
                    .attr("r", 6);
​
            //Axes
            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>
    