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<head>
<meta charset="utf-8">
<title>The Wealth & Health of Nations</title>
<style>
text {
font: 10px sans-serif;
}
.dot {
stroke: #000;
opacity: 0.8;
}
.axis path, .axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.label {
fill: #777;
}
</style>
</head>
<body>
<div id="chart"></div>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script>
// Based on https://bost.ocks.org/mike/nations/ and data from gapminder.org
// Chart dimensions.
var margin = {top: 19.5, right: 19.5, bottom: 19.5, left: 19.5},
width = 960 - margin.right - margin.left,
height = 500 - margin.top - margin.bottom;
// Create the SVG container and set the origin.
var svg = d3.select("#chart").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
// Various scales. These domains make assumptions of data.
var xScale = d3.scale.log().domain([400, 70000]).range([0, width]),
yScale = d3.scale.linear().domain([35, 80]).range([height, 0]),
radiusScale = d3.scale.sqrt().domain([0, 5e8]).range([3, 40]),
colorScale = d3.scale.category10();
// The x & y axes.
var xAxis = d3.svg.axis().orient("bottom").scale(xScale).ticks(12, d3.format(",d")),
yAxis = d3.svg.axis().scale(yScale).orient("left");
// Add the x-axis.
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
// Add the y-axis.
svg.append("g")
.attr("class", "y axis")
.call(yAxis);
// Add an x-axis label.
svg.append("text")
.attr("class", "x label")
.attr("text-anchor", "end")
.attr("x", width)
.attr("y", height - 6)
.text("Average GDP per capita");
// Add a y-axis label.
svg.append("text")
.attr("class", "y label")
.attr("text-anchor", "end")
.attr("y", 6)
.attr("dy", ".75em")
.attr("transform", "rotate(-90)")
.text("Average life expectancy (years)");
// Load the data.
//d3.json("nations.json", function(nations) {
d3.csv("gapminder_avg.csv", function(nations) {
var dotGroup = svg.append("g");
// Add a dot per nation.
var dots = dotGroup.selectAll("circle")
.data(nations.sort(order));
dots
.enter().append("circle")
.attr("class", "dot")
.attr("cx", function(d) { return xScale(+d.gdp); })
.attr("cy", function(d) { return yScale(+d.lifeexp); })
.attr("r", function(d) { return radiusScale(+d.population); })
.style("fill", function(d) { return colorScale(d.region); })
.append("title")
.text(function(d) { return d.country + ": " + Math.round(+d.population); })
;
// Defines a sort order so that the smallest dots are drawn on top.
function order(a, b) {
return +b.population - +a.population;
}
dots.on("mouseover", function(d) {
d3.select(this).style("stroke", "yellow").style("stroke-width", 3)
})
dots.on("mouseout", function(d) {
d3.select(this).style("stroke", "").style("stroke-width", "")
})
});
</script>
</body>
Modified http://d3js.org/d3.v3.min.js to a secure url
https://d3js.org/d3.v3.min.js