Gist for a simple line chart for public health data from Puerto Rico.
Humberto Ortiz-Zuazaga humberto.ortiz@upr.edu
Part of SalHUD.
2014/03/31 - HOZ
Added x axis line, fixed labels.
2014/03/30 - HOZ
Added a second line and modified the date format from the example:
| date | raw | adj | |
|---|---|---|---|
| 2000 | 756.3 | 850.5 | |
| 2001 | 767.1 | 846.2 | |
| 2002 | 736.5 | 797.9 | |
| 2003 | 744.0 | 790.7 | |
| 2004 | 760.2 | 791.5 | |
| 2005 | 766.6 | 779.2 | |
| 2006 | 729.3 | 723.4 | |
| 2007 | 744.0 | 719.8 | |
| 2008 | 735.9 | 694.6 |
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| font: 10px sans-serif; | |
| } | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .line { | |
| fill: none; | |
| stroke: green; | |
| stroke-width: 1.5px; | |
| } | |
| .line2 { | |
| fill: none; | |
| stroke: blue; | |
| stroke-width: 1.5px; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.js"></script> | |
| <script> | |
| var margin = {top: 20, right: 20, bottom: 50, left: 50}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var parseDate = d3.time.format("%Y").parse; | |
| 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 line = d3.svg.line() | |
| .x(function(d) { return x(d.date); }) | |
| .y(function(d) { return y(d.adj); }); | |
| var line2 = d3.svg.line() | |
| .x(function(d) { return x(d.date); }) | |
| .y(function(d) { return y(d.raw); }); | |
| 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.csv("chart.csv", function(error, data) { | |
| data.forEach(function(d) { | |
| d.date = parseDate(d.date); | |
| d.raw = +d.raw; | |
| d.adj = +d.adj; | |
| }); | |
| x.domain(d3.extent(data, function(d) { return d.date; })); | |
| y.domain(d3.extent(data, function(d) { return d.adj; })); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis) | |
| .append("text") | |
| .attr("x", width / 2) | |
| .style("text-anchor", "middle") | |
| .attr("y", 40) | |
| .text("Año"); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(yAxis) | |
| .append("text") | |
| .attr("y", -30) | |
| .attr("x", -(height / 2)) | |
| .attr("dy", ".71em") | |
| .style("text-anchor", "end") | |
| .attr("transform", "rotate(-90)") | |
| .text("Tasa"); | |
| svg.append("path") | |
| .datum(data) | |
| .attr("class", "line") | |
| .attr("d", line); | |
| svg.append("path") | |
| .datum(data) | |
| .attr("class", "line2") | |
| .attr("d", line2); | |
| }); | |
| </script> |