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9 - Simple scatterplot with d3.js
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license: mit |
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date | close | |
---|---|---|
1-May-12 | 58.13 | |
30-Apr-12 | 53.98 | |
27-Apr-12 | 67.00 | |
26-Apr-12 | 89.70 | |
25-Apr-12 | 99.00 | |
24-Apr-12 | 130.28 | |
23-Apr-12 | 166.70 | |
20-Apr-12 | 234.98 | |
19-Apr-12 | 345.44 | |
18-Apr-12 | 443.34 | |
17-Apr-12 | 543.70 | |
16-Apr-12 | 580.13 | |
13-Apr-12 | 605.23 | |
12-Apr-12 | 622.77 | |
11-Apr-12 | 626.20 | |
10-Apr-12 | 628.44 | |
9-Apr-12 | 636.23 | |
5-Apr-12 | 633.68 | |
4-Apr-12 | 624.31 | |
3-Apr-12 | 629.32 | |
2-Apr-12 | 618.63 | |
30-Mar-12 | 599.55 | |
29-Mar-12 | 609.86 | |
28-Mar-12 | 617.62 | |
27-Mar-12 | 614.48 | |
26-Mar-12 | 606.98 |
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> /* set the CSS */ | |
body { font: 12px Arial;} | |
path { | |
stroke: steelblue; | |
stroke-width: 2; | |
fill: none; | |
} | |
.axis path, | |
.axis line { | |
fill: none; | |
stroke: grey; | |
stroke-width: 1; | |
shape-rendering: crispEdges; | |
} | |
</style> | |
<body> | |
<!-- load the d3.js library --> | |
<script src="http://d3js.org/d3.v3.min.js"></script> | |
<script> | |
// Set the dimensions of the canvas / graph | |
var margin = {top: 30, right: 20, bottom: 30, left: 50}, | |
width = 600 - margin.left - margin.right, | |
height = 270 - margin.top - margin.bottom; | |
// Parse the date / time | |
var parseDate = d3.time.format("%d-%b-%y").parse; | |
// Set the ranges | |
var x = d3.time.scale().range([0, width]); | |
var y = d3.scale.linear().range([height, 0]); | |
// Define the axes | |
var xAxis = d3.svg.axis().scale(x) | |
.orient("bottom").ticks(5); | |
var yAxis = d3.svg.axis().scale(y) | |
.orient("left").ticks(5); | |
// Define the line | |
var valueline = d3.svg.line() | |
.x(function(d) { return x(d.date); }) | |
.y(function(d) { return y(d.close); }); | |
// Adds the svg canvas | |
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 data | |
d3.csv("data.csv", function(error, data) { | |
data.forEach(function(d) { | |
d.date = parseDate(d.date); | |
d.close = +d.close; | |
}); | |
// Scale the range of the data | |
x.domain(d3.extent(data, function(d) { return d.date; })); | |
y.domain([0, d3.max(data, function(d) { return d.close; })]); | |
// Add the valueline path. | |
svg.append("path") | |
.attr("class", "line") | |
.attr("d", valueline(data)); | |
// Add the scatterplot | |
svg.selectAll("dot") | |
.data(data) | |
.enter().append("circle") | |
.attr("r", 3.5) | |
.attr("cx", function(d) { return x(d.date); }) | |
.attr("cy", function(d) { return y(d.close); }); | |
// 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); | |
}); | |
</script> | |
</body> |
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