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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>