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Multi-Series Line Chart
We can make this file beautiful and searchable if this error is corrected: It looks like row 2 should actually have 6 columns, instead of 5. in line 1.
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Indicators Government Companies Total Difference Ratio Number of individual payments | |
87,658 43,160 131,488 44,498 0.4 |
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
body { | |
font: 10px sans-serif; | |
} | |
.axis path, | |
.axis line { | |
fill: none; | |
stroke: #000; | |
shape-rendering: crispEdges; | |
} | |
.x.axis path { | |
display: none; | |
} | |
.line { | |
fill: none; | |
stroke: steelblue; | |
stroke-width: 1.5px; | |
} | |
</style> | |
<body> | |
<script src="http://d3js.org/d3.v3.js"></script> | |
<script> | |
var margin = {top: 20, right: 80, bottom: 30, left: 50}, | |
width = 960 - margin.left - margin.right, | |
height = 500 - margin.top - margin.bottom; | |
var parseDate = d3.time.format("%Y%m%d").parse; | |
var x = d3.time.scale() | |
.range([0, width]); | |
var y = d3.scale.linear() | |
.range([height, 0]); | |
var color = d3.scale.category10(); | |
var xAxis = d3.svg.axis() | |
.scale(x) | |
.orient("bottom"); | |
var yAxis = d3.svg.axis() | |
.scale(y) | |
.orient("left"); | |
var line = d3.svg.line() | |
.interpolate("basis") | |
.x(function(d) { return x(d.date); }) | |
.y(function(d) { return y(d.temperature); }); | |
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 + ")"); | |
d3.tsv("data.tsv", function(error, data) { | |
color.domain(d3.keys(data[0]).filter(function(key) { return key !== "date"; })); | |
data.forEach(function(d) { | |
d.date = parseDate(d.date); | |
}); | |
var cities = color.domain().map(function(name) { | |
return { | |
name: name, | |
values: data.map(function(d) { | |
return {date: d.date, temperature: +d[name]}; | |
}) | |
}; | |
}); | |
x.domain(d3.extent(data, function(d) { return d.date; })); | |
y.domain([ | |
d3.min(cities, function(c) { return d3.min(c.values, function(v) { return v.temperature; }); }), | |
d3.max(cities, function(c) { return d3.max(c.values, function(v) { return v.temperature; }); }) | |
]); | |
svg.append("g") | |
.attr("class", "x axis") | |
.attr("transform", "translate(0," + height + ")") | |
.call(xAxis); | |
svg.append("g") | |
.attr("class", "y axis") | |
.call(yAxis) | |
.append("text") | |
.attr("transform", "rotate(-90)") | |
.attr("y", 6) | |
.attr("dy", ".71em") | |
.style("text-anchor", "end") | |
.text("Temperature (ºF)"); | |
var city = svg.selectAll(".city") | |
.data(cities) | |
.enter().append("g") | |
.attr("class", "city"); | |
city.append("path") | |
.attr("class", "line") | |
.attr("d", function(d) { return line(d.values); }) | |
.style("stroke", function(d) { return color(d.name); }); | |
city.append("text") | |
.datum(function(d) { return {name: d.name, value: d.values[d.values.length - 1]}; }) | |
.attr("transform", function(d) { return "translate(" + x(d.value.date) + "," + y(d.value.temperature) + ")"; }) | |
.attr("x", 3) | |
.attr("dy", ".35em") | |
.text(function(d) { return d.name; }); | |
}); | |
</script> |
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