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d3.js Area Chart Example
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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; | |
| } | |
| .area { | |
| fill: steelblue; | |
| } | |
| </style> | |
| <body> | |
| <script src="//d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var margin = {top: 20, right: 20, bottom: 30, left: 50}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var formatDate = d3.time.format("%Y-%m-%d %H:%M:%S"); | |
| var x = d3.time.scale() | |
| .range([0, width]); | |
| var y = d3.scale.linear() | |
| .range([height, 0]); | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .orient("bottom"); | |
| var yAxis = d3.svg.axis() | |
| .scale(y) | |
| .orient("left"); | |
| var area = d3.svg.area() | |
| .x(function(d) { return x(d.date); }) | |
| .y0(height) | |
| .y1(function(d) { return y(d.session_rate); }); | |
| 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("io.tsv", type, function(error, data) { | |
| if (error) throw error; | |
| x.domain(d3.extent(data, function(d) { return d.date; })); | |
| y.domain(d3.extent(data, function(d) { return d.session_rate; })); | |
| 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("Logical IO"); | |
| svg.append("path") | |
| .datum(data) | |
| .attr("class", "area") | |
| .attr("d", area); | |
| }); | |
| function type(d) { | |
| d.date = formatDate.parse(d.date); | |
| d.session_rate = +d.session_rate; | |
| return d; | |
| } | |
| </script> |
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| date | session_rate | |
|---|---|---|
| 2016-02-19 14:50:03 | 1445 | |
| 2016-02-19 14:51:03 | 2963 | |
| 2016-02-19 14:52:02 | 5342 | |
| 2016-02-19 14:53:03 | 40 | |
| 2016-02-19 14:54:02 | 8 | |
| 2016-02-19 14:55:03 | 120 | |
| 2016-02-19 14:56:02 | 1912 | |
| 2016-02-19 14:57:03 | 1995 | |
| 2016-02-19 14:58:03 | 26 | |
| 2016-02-19 14:59:03 | 2290 | |
| 2016-02-19 15:00:03 | 1809 | |
| 2016-02-19 15:01:02 | 971 | |
| 2016-02-19 15:02:02 | 55 | |
| 2016-02-19 15:03:03 | 10 | |
| 2016-02-19 15:04:03 | 640 | |
| 2016-02-19 15:05:02 | 2072 | |
| 2016-02-19 15:06:03 | 703 | |
| 2016-02-19 15:07:02 | 8581 | |
| 2016-02-19 15:08:03 | 6 | |
| 2016-02-19 15:09:03 | 14 | |
| 2016-02-19 15:10:03 | 3115 | |
| 2016-02-19 15:11:03 | 71 | |
| 2016-02-19 15:12:02 | 7 | |
| 2016-02-19 15:13:04 | 41 | |
| 2016-02-19 15:14:02 | 47 | |
| 2016-02-19 15:15:02 | 8 | |
| 2016-02-19 15:16:03 | 464 | |
| 2016-02-19 15:19:03 | 30 |
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d3.svg.area throws an error - not a function. Can you please help to identify how to plot an area in this case? Thank you very much for your help.