xxxxxxxxxx
<meta charset="utf-8">
<style> /* set the CSS */
</style>
<body>
<!-- load the d3.js library -->
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>
// set the dimensions and margins of the graph
var margin = {top: 20, right: 20, bottom: 60, left: 50},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
// set the ranges
var x = d3.scaleLinear()
.range([0, width]);
// .padding(0.1);
var y = d3.scaleLinear()
.range([height, 0]);
var cValue = function(d) { return d["gender"];},
color = d3.scaleOrdinal(d3.schemeCategory20);
var svg = d3.select("body").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 + ")");
// get the billionaires data
d3.csv("billionaires.csv", function(error, data) {
if (error) throw error;
data.sort(function(x, y){
return d3.ascending(x.age, y.age);
})
console.log(data);
maleFiltered = data.filter(function (d) { return d.gender == 'male' })
femaleFiltered = data.filter(function (d) { return d.gender == 'female' })
marriedFiltered = data.filter(function (d) { return d.gender == 'married couple' })
x.domain([d3.min(data, function(d) { return +d['age']; }), d3.max(data, function(d) { return +d['age']; })]);
y.domain([0, d3.max(data, function(d) { return +d['worth in billions']; })]);
// 3 X-Axes
var x1 = d3.scaleLinear()
.range([0, width/3])
x1.domain([d3.min(data, function(d) { return +d['age']; }), d3.max(data, function(d) { return +d['age']; })]);
var x2 = d3.scaleLinear()
.range([width/3+margin.left, 2*(width/3)])
x2.domain([d3.min(data, function(d) { return +d['age']; }), d3.max(data, function(d) { return +d['age']; })]);
var x3 = d3.scaleLinear()
.range([2*(width/3)+margin.left, width])
x3.domain([d3.min(data, function(d) { return +d['age']; }), d3.max(data, function(d) { return +d['age']; })]);
svg.append("g")
.attr("transform", "translate(0," + height + ")")
.call(d3.axisBottom(x1).ticks(5))
.selectAll("text")
.style("text-anchor", "end")
.attr("dx", ".8em")
.style("font-size", "8px")
.attr("dy", ".75em")
svg.append("g")
.attr("transform", "translate(0," + height + ")")
.call(d3.axisBottom(x2).ticks(5))
.selectAll("text")
.style("text-anchor", "end")
.attr("dx", ".8em")
.style("font-size", "8px")
.attr("dy", ".75em")
svg.append("g")
.attr("transform", "translate(0," + height + ")")
.call(d3.axisBottom(x3).ticks(5))
.selectAll("text")
.style("text-anchor", "end")
.attr("dx", ".8em")
.style("font-size", "8px")
.attr("dy", ".75em")
// add the y Axis
svg.append("g")
.call(d3.axisLeft(y));
svg.append("text")
.attr("text-anchor", "middle") // this makes it easy to centre the text as the transform is applied to the anchor
.attr("transform", "translate("+ -margin.right*1.1 +","+(height/2)+")rotate(-90)")
.text("Worth in Billions");
svg.append("text")
.attr("text-anchor", "middle") // this makes it easy to centre the text as the transform is applied to the anchor
.attr("transform", "translate("+ (width/2) +","+(height+margin.bottom/2)+")")
.text("Age");
console.log("male", maleFiltered);
console.log("female", femaleFiltered);
console.log("married", marriedFiltered);
svg.append("g")
.selectAll(".dot")
.data(maleFiltered)
.enter().append("circle")
.attr("class", "dot")
.attr("r", 3.5)
.attr("cx", function(d) { return x1(d['age']); })
.attr("cy", function(d) { return y(d["worth in billions"]); })
.style("fill", function(d) { return color(cValue(d))});
svg.append("g")
.selectAll(".dot")
.data(femaleFiltered)
.enter().append("circle")
.attr("class", "dot")
.attr("r", 3.5)
.attr("cx", function(d) { return x2(d['age']); })
.attr("cy", function(d) { return y(d["worth in billions"]); })
.style("fill", function(d) { return color(cValue(d))});
svg.append("g")
.selectAll(".dot")
.data(marriedFiltered)
.enter().append("circle")
.attr("class", "dot")
.attr("r", 3.5)
.attr("cx", function(d) { return x3(d['age']); })
.attr("cy", function(d) { return y(d["worth in billions"]); })
.style("fill", function(d) { return color(cValue(d))});
//Legend
// draw legend
var legend = svg.selectAll(".legend")
.data(color.domain())
.enter().append("g")
.attr("class", "legend")
.attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });
// draw legend colored rectangles
legend.append("rect")
.attr("x", width - 18)
.attr("width", 18)
.attr("height", 18)
.style("fill", color);
// draw legend text
legend.append("text")
.attr("x", width - 24)
.attr("y", 9)
.attr("dy", ".35em")
.style("text-anchor", "end")
.text(function(d) { return d;})
});
</script>
<p><a href ="https://bl.ocks.org/elt12njo/76b484f5187c7ecfc83070dd81897327/6741bd95237f3ed45867a843e8e5403b90386639">Reference</a>
</p>
</body>
https://d3js.org/d3.v4.min.js