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- <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
- <html>
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
- <title>Flot Examples: Error Bars</title>
- <link href="../examples.css" rel="stylesheet" type="text/css">
- <!--[if lte IE 8]><script language="javascript" type="text/javascript" src="../../excanvas.min.js"></script><![endif]-->
- <script language="javascript" type="text/javascript" src="../../jquery.js"></script>
- <script language="javascript" type="text/javascript" src="../../jquery.flot.js"></script>
- <script language="javascript" type="text/javascript" src="../../jquery.flot.errorbars.js"></script>
- <script language="javascript" type="text/javascript" src="../../jquery.flot.navigate.js"></script>
- <script type="text/javascript">
- $(function() {
- function drawArrow(ctx, x, y, radius){
- ctx.beginPath();
- ctx.moveTo(x + radius, y + radius);
- ctx.lineTo(x, y);
- ctx.lineTo(x - radius, y + radius);
- ctx.stroke();
- }
- function drawSemiCircle(ctx, x, y, radius){
- ctx.beginPath();
- ctx.arc(x, y, radius, 0, Math.PI, false);
- ctx.moveTo(x - radius, y);
- ctx.lineTo(x + radius, y);
- ctx.stroke();
- }
- var data1 = [
- [1,1,.5,.1,.3],
- [2,2,.3,.5,.2],
- [3,3,.9,.5,.2],
- [1.5,-.05,.5,.1,.3],
- [3.15,1.,.5,.1,.3],
- [2.5,-1.,.5,.1,.3]
- ];
- var data1_points = {
- show: true,
- radius: 5,
- fillColor: "blue",
- errorbars: "xy",
- xerr: {show: true, asymmetric: true, upperCap: "-", lowerCap: "-"},
- yerr: {show: true, color: "red", upperCap: "-"}
- };
- var data2 = [
- [.7,3,.2,.4],
- [1.5,2.2,.3,.4],
- [2.3,1,.5,.2]
- ];
- var data2_points = {
- show: true,
- radius: 5,
- errorbars: "y",
- yerr: {show:true, asymmetric:true, upperCap: drawArrow, lowerCap: drawSemiCircle}
- };
- var data3 = [
- [1,2,.4],
- [2,0.5,.3],
- [2.7,2,.5]
- ];
- var data3_points = {
- //do not show points
- radius: 0,
- errorbars: "y",
- yerr: {show:true, upperCap: "-", lowerCap: "-", radius: 5}
- };
- var data4 = [
- [1.3, 1],
- [1.75, 2.5],
- [2.5, 0.5]
- ];
- var data4_errors = [0.1, 0.4, 0.2];
- for (var i = 0; i < data4.length; i++) {
- data4_errors[i] = data4[i].concat(data4_errors[i])
- }
- var data = [
- {color: "blue", points: data1_points, data: data1, label: "data1"},
- {color: "red", points: data2_points, data: data2, label: "data2"},
- {color: "green", lines: {show: true}, points: data3_points, data: data3, label: "data3"},
- // bars with errors
- {color: "orange", bars: {show: true, align: "center", barWidth: 0.25}, data: data4, label: "data4"},
- {color: "orange", points: data3_points, data: data4_errors}
- ];
- $.plot($("#placeholder"), data , {
- legend: {
- position: "sw",
- show: true
- },
- series: {
- lines: {
- show: false
- }
- },
- xaxis: {
- min: 0.6,
- max: 3.1
- },
- yaxis: {
- min: 0,
- max: 3.5
- },
- zoom: {
- interactive: true
- },
- pan: {
- interactive: true
- }
- });
- // Add the Flot version string to the footer
- $("#footer").prepend("Flot " + $.plot.version + " – ");
- });
- </script>
- </head>
- <body>
- <div id="header">
- <h2>Error Bars</h2>
- </div>
- <div id="content">
- <div class="demo-container">
- <div id="placeholder" class="demo-placeholder"></div>
- </div>
- <p>With the errorbars plugin you can plot error bars to show standard deviation and other useful statistical properties.</p>
- </div>
- <div id="footer">
- Copyright © 2007 - 2014 IOLA and Ole Laursen
- </div>
- </body>
- </html>
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