-<html>
- <head>
- <title>dygraphs JavaScript Visualization Library</title>
- <!--[if IE]>
- <script type="text/javascript" src="excanvas.js"></script>
- <![endif]-->
- <script type="text/javascript" src="dygraph-combined.js"></script>
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- </head>
-<body>
-
-<div id="nav">
-<ul>
-<li><b>Documentation</b>
- <ul>
- <li><a href="#demo">Demo</a>
- <li><a href="#usage">Usage</a>
- <li><a href="#stock">Stock chart</a>
- <li><a href="#options">Options Reference</a>
- <li><a href="#policy">Data Policy</a>
- </ul>
-
-<li><b>Project</b>
- <ul>
- <li><a href="http://github.com/danvk/dygraphs">Source</a>
- <li><a href="http://code.google.com/p/dygraphs/issues/">Issues</a>
- <li><a href="http://code.google.com/p/dygraphs/issues/entry">Report Bug</a>
- <li><a href="mailto:danvdk [at] gmail">Contact</a>
- </ul>
-
-
-<li><b>Gallery</b>
- <ul>
- <li><a href="tests/demo.html">Basic Demo</a>
- <li><a href="tests/gviz.html">GViz Demo</a>
- <li><a href="tests/plotter.html">Equation Plotter</a>
- <li><a href="tests/perf.html">Performance Test</a>
-
- <li><a href="tests/label-div.html">Labels in a DIV</a>
- <li><a href="tests/numeric-axis.html">Numeric Axis</a>
- <li><a href="tests/draw-points.html">Dotted Points</a>
-
- <li><a href="tests/native-format.html">Native Format</a>
- <li><a href="tests/grid_dot.html">Crazy Styles</a>
- <li><a href="tests/spacing.html">Tick spacing</a>
- <li><a href="tests/callback.html">Callbacks</a>
- <li><a href="tests/crosshair.html">Crosshairs</a>
- <li><a href="tests/hourly.html">Hourly/Minutely data</a>
-
- <li><a href="tests/isolated-points.html">Isolated Points</a>
- <li><a href="tests/missing-data.html">Missing Data</a>
-
- <li><a href="tests/border.html">Bordered chart</a>
- <li><a href="tests/custom-bars.html">Custom Bars</a>
- <li><a href="tests/customLabel.html">Custom Label Styles</a>
- <li><a href="tests/dygraph.html">Minimal Example</a>
- <li><a href="tests/negative.html">Negative Numbers</a>
- <li><a href="tests/noise.html">Noisy Data</a>
- <li><a href="tests/two-series.html">Multiple Series</a>
- </ul>
-</ul>
-</div>
-
-<div id="content">
-<p><span style="font-size:28pt;">dygraphs JavaScript Visualization Library</span><br/>
-<a href="http://github.com/danvk/dygraphs">http://github.com/danvk/dygraphs</a><br/>
-See <a href="tests/">gallery</a> and <a href="http://code.google.com/p/dygraphs/issues/">open issues</a></p>
-
-<p>The dygraphs JavaScript library produces produces interactive, zoomable charts of time series. It is designed to display dense data sets and enable users to explore and interpret them.</p>
-
-<h3>Features</h3>
-<ul>
- <li>Plots time series without using an external server or Flash</li>
- <li>Supports error bands around data series</li>
- <li>Displays values on mouseover (this makes it easily discoverable)</li>
- <li>Interactive zoom</li>
- <li>Adjustable averaging period</li>
- <li>Customizable click-through actions</li>
- <li>Compatible with the Google Visualization API</li>
- <li>Works in Internet Explorer (using excanvas)</li>
- <li>Intelligent defaults make it easy to use</li>
- <li>Lightweight (45kb) and responsive</li>
-</ul>
-
-<a name="demo"><h2>Demo</h2>
-<p><font size=-1>(Mouse over to highlight individual values. Click and drag to zoom. Double-click to zoom back out. Change the number and hit enter to adjust the averaging period.)</font></p>
-<div id="title" style="width:800px; text-align:center; font-weight: bold; font-size: 125%;">Temperatures in New York vs. San Francisco</div>
-<div id="demodiv" style="width:800px; height:320px;"></div>
-<script type="text/javascript">
- g = new Dygraph(
- document.getElementById("demodiv"),
- "ny-vs-sf.txt",
- {
- rollPeriod: 14,
- showRoller: true,
- customBars: true,
- yAxisLabelWidth: 30
- }
- );
-</script>
-
-<p>Some things to notice:</p>
-<ul>
-<li>There's less seasonal temperature variation in SF than in NY.
-<li>The difference is about 15° F for SF vs. 50° F for NY.
-<li>The daily data (set rolling period to 1) is quite noisy and hides this conclusion.
-<li>Using a 14-day moving average makes it clearer. A 100-day rolling period averages out nearly all the specifics from the data.
-<li>There's a gap in the data for SF, when the weather station was down (zoom into October 2007 to see it).
-<li>The bands around each point indicate average highs and lows.
-<li>There is a <i>lot</i> of data in this chart: low, average and high for each city on each day of a three year period ≈ 6000 data points in all.
-</ul>
-
-<p>For more demos, browse the dygraph <a href="tests/">tests</a> directory.</p>
-
-<a name="usage"><h2>Usage</h2>
-
-<p>To use dygraphs, include the <code>dygraph-combined.js</code> JavaScript file and instantiate a <code>Dygraph</code> object.</p>
-
-<p>Here's a basic example to get things started:</p>
-
-<table>
- <tr><th>HTML</th>
- <td rowspan=2><img src=arrow.gif /></td>
- <th>Output</th></tr>
-<tr>
-<td valign=top><pre>
-<html>
-<head>
-<script type="text/javascript"
- src="dygraph-combined.js"></script>
-</head>
-<body>
-<div id="graphdiv"></div>
-<script type="text/javascript">
- g = new Dygraph(
- // containing div
- document.getElementById("graphdiv"),
- // CSV or path to a CSV file.
- "Date,Temperature\n" +
- "2008-05-07,75\n" +
- "2008-05-08,70\n" +
- "2008-05-09,80\n"
- );
-</script>
-</body>
-</html>
-</pre>
-</td><td valign=top>
- <div id="graphdiv"></div>
-</td></tr></table>
-
-<script type="text/javascript">
- g1 = new Dygraph(
- document.getElementById("graphdiv"), // containing div
- "Date,Temperature\n" + // CSV or path to a CSV file.
- "2008-05-07,75\n" +
- "2008-05-08,70\n" +
- "2008-05-09,80\n"
- );
-</script>
-
-<p>In order to keep this example self-contained, the second parameter is raw CSV data. The dygraphs library parses this data (including column headers), resizes the its container to a reasonable default, calculates appropriate axis ranges and tick marks and draws the graph.</p>
-
-<p>In most applications, it makes more sense to include a CSV file instead. If the second parameter to the constructor doesn't contain a newline, it will be interpreted as the path to a CSV file. The Dygraph will perform an XMLHttpRequest to retrieve this file and display the data when it becomes available. Make sure your CSV file is readable and serving from a place that understands XMLHttpRequest's! In particular, you cannot specify a CSV file using <code>"file:///"</code>. Here's an example: (data from <a href="http://www.wunderground.com/history/airport/KNUQ/2007/1/1/CustomHistory.html?dayend=31&monthend=12&yearend=2007&req_city=NA&req_state=NA&req_statename=NA">Weather Underground</a>)</p>
-
-<table>
- <tr><th>HTML</th>
- <td rowspan=2><img src=arrow.gif /></td>
- <th>Output</th></tr>
-<tr>
-<td valign=top><pre>
-<html>
-<head>
-<script type="text/javascript"
- src="dygraph-combined.js"></script>
-</head>
-<body>
-<div id="graphdiv"
- style="width:500px; height:300px;"></div>
-<script type="text/javascript">
- new Dygraph(
- document.getElementById("graphdiv"),
- "temperatures.csv", // path to CSV file
- {} // options
- );
-</script>
-</body>
-</html>
-</pre>
-</td><td valign=top>
- <div id="graphdiv2" style="width:500px; height:300px;"></div>
-</td></tr></table>
-
-<script type="text/javascript">
- g2 = new Dygraph(
- document.getElementById("graphdiv2"),
- "temperatures.csv", {}
- );
-</script>
-
-<p>Click <a href="temperatures.csv">here</a> to view the <code>temperatures.csv</code> file. There are a few things to note here:</p>
-
-<ul>
- <li>The Dygraph sent off an XHR to get the temperatures.csv file.</li>
- <li>The labels were taken from the first line of <code>temperatures.csv</code>, which is <code>Date,High,Low</code>.</li>
- <li>The Dygraph automatically chose two different, easily-distinguishable colors for the two data series.</li>
- <li>The labels on the x-axis have switched from days to months. If you zoom in, they'll switch to weeks and then days.</li>
- <li>Some heuristics are used to determine a good vertical range for the data. The idea is to make all the data visible and have human-friendly values on the axis (i.e. 200 instead of 193.4). Generally this works well.</li>
- <li>The data is very spiky. A moving average would be easier to interpret.</li>
-</ul>
-
-<p>This problem can be fixed by specifying the appropriate options in the "additional options" parameter to the Dygraph constructor. To set the number of days for a moving average, use the <code>rollPeriod</code> option. Here's how it's done:</p>
-
-<table>
- <tr><th>HTML</th>
- <td rowspan=2><img src=arrow.gif /></td>
- <th>Output</th></tr>
-<tr>
-<td valign=top><pre>
-<html>
-<head>
-<script type="text/javascript"
- src="dygraph-combined.js"></script>
-</head>
-<body>
-<div id="graphdiv"
- style="width:500px; height:300px;"></div>
-<script type="text/javascript">
- g = new Dygraph(
- document.getElementById("graphdiv"),
- "temperatures.csv",
- { rollPeriod: 7,
- showRoller: true,
- }
- );
-</script>
-</body>
-</html>
-</pre>
-</td><td valign=top>
- <div id="graphdiv3" style="width:500px; height:300px;"></div>
-</td></tr></table>
-
-<script type="text/javascript">
- g3 = new Dygraph(
- document.getElementById("graphdiv3"),
- "temperatures.csv",
- { rollPeriod: 7,
- showRoller: true });
-</script>
-
-<p>A rolling average can be set using the text box in the lower left-hand corner of the graph (the showRoller attribute is what makes this appear). Also note that we've explicitly set the size of the chart div.</p>
-
-<h2>Error Bars</h2>
-<p>Another significant feature of the dygraphs library is the ability to display error bars around data series. One standard deviation must be specified for each data point. A +/-<i>n</i> sigma band will be drawn around the data series at that point. If a moving average is being displayed, dygraphs will compute the standard deviation of the average at each point. (i.e. <i>σ</i> = sqrt((<i>σ_1</i>^2 + <i>σ_2</i>^2 + ... + <i>σ_n</i>^2)/<i>n</i>))</p>
-
-<p>Here's a demonstration. There are two data series. One is <code>N(100,10)</code> with a standard deviation of 10 specified at each point. The other is <code>N(80,20)</code> with a standard deviation of 20 specified at each point. The CSV file was generated using Octave and can be viewed <a href="twonormals.csv">here</a>.</p>
-
-<table>
- <tr><th>HTML</th>
- <td rowspan=2><img src=arrow.gif /></td>
- <th>Output</th></tr>
-<tr>
-<td valign=top><pre>
-<html>
-<head>
-<script type="text/javascript"
- src="combined.js"></script>
-</head>
-<body>
-<div id="graphdiv"
- style="width:600px; height:300px;"
- ></div>
-<script type="text/javascript">
-$ = document.getElementById;
-g = new Dygraph(
- $("graphdiv"),
- "twonormals.csv",
- { rollPeriod: 7,
- showRoller: true,
- errorBars: true,
- valueRange: [50,125]
- }
-);
-</script>
-</body>
-</html>
-</pre>
-</td><td valign=top>
- <div id="graphdiv4" style="width:600px; height:300px;"></div>
-</td></tr></table>
-
-<script type="text/javascript">
-$ = document.getElementById;
-new Dygraph(
- document.getElementById("graphdiv4"),
- "twonormals.csv",
- { rollPeriod: 14,
- showRoller: true,
- errorBars: true,
- valueRange: [50, 125]
- }
-);
-</script>
-
-<p>Things to note here:</p>
-<ul>
- <li>The <b>errorBars</b> option affects both the interpretation of the CSV file and the display of the graph. When <b>errorBars</b> is set to true, each line is interpreted as <i>YYYYMMDD</i>,<i>A</i>,<i>sigma_A</i>,<i>B</i>,<i>sigma_B</i>,...</li>
- <li>The first line of the CSV file doesn't mention the error columns. In this case, it's just "Date,Series1,Series2".</li>
- <li>The averaging visibly affects the error bars. This is most clear if you crank up the rolling period to something like 100 days. For the earliest dates, there won't be 100 data points to average so the signal will be noisier. The error bars get smaller like sqrt(N) going forward in time until there's a full 100 points to average.</li>
- <li>The error bars are partially transparent. This can be seen when they overlap one another.</li>
-</ul>
-
-<a name="stock"><h2>One last demo</h2>
-
-<p>This chart shows monthly closes of the Dow Jones Industrial Average, both in nominal and real (i.e. adjusted for inflation) dollars. The shaded areas show its monthly high and low. CPI values with a base from 1982-84 are used to adjust for inflation.</p>
-
-<div id=dow_chart style="width:900px; height:350px;"></div>
-<script type="text/javascript">
- // From http://www.econstats.com/eqty/eq_d_mi_3.csv
- dow = new Dygraph(
- document.getElementById('dow_chart'),
- "dow.txt",
- {
- showRoller: true,
- customBars: true,
- labelsKMB: true });
-</script>
-<!--
-
-Here is a script to regenerate the Dow Jones plot:
-
-# Get unadjusted DJIA data in a nice format:
-curl -O http://www.econstats.com/eqty/eq_d_mi_3.csv
-sed '1,17d' eq_d_mi_3.csv | cut -d, -f1,6 | perl -pe 's/(\d{4}-\d\d)-\d\d/$1/g' | perl -pe 's/, */\t/' | grep -v 'na' | perl -ne 'chomp; ($m,$v) = split/\t/; $close{$m} = $v; if ($low{$m} == 0 || $v < $low{$m}) { $low{$m}=$v } if ($v > $high{$m}) { $high{$m} = $v } END { for $x(sort keys %close) { print "$x\t$low{$x}\t$close{$x}\t$high{$x}\n" } } ' > monthly-djia.tsv
-
-# Fetch and format the CPI data:
-curl 'http://data.bls.gov/PDQ/servlet/SurveyOutputServlet?series_id=CUUR0000SA0&years_option=all_years&periods_option=all_periods&output_type=column&output_format=text&delimiter=comma' > cpi-u.txt
-sed '1,/Series Id,Year,/d' cpi-u.txt | sed '/^$/,$d' | cut -d, -f2,3,4 | perl -ne 'print if /,M(0[0-9]|1[012]),/' | perl -pe 's/(\d{4}),M(\d{2}),/$1-$2\t/g' > cpi-u.tsv
-
-# Merge:
-join -t' ' cpi-u.tsv monthly-djia.tsv > annotated-djia.tsv
-perl -ne 'BEGIN{print "Month,Nominal,Real\n"} chomp; ($m,$cpi,$low,$close,$high) = split /\t/; $cpi /= 100.0; print "$m-15,$low;$close;$high,",($low/$cpi),";",($close/$cpi),";",($high/$cpi),"\n"' annotated-djia.tsv > dow.txt
-
--->
-
-
-<a name="options">
-<h2>Other Options</h2>
-<p>These are the options that can be passed in through the optional third parameter of the Dygraph constructor. To see demonstrations of many of these options, browse the <a href="tests/">dygraphs tests</a> directory.</p>
-
-<table class=thinborder width=900>
- <tr><th>Name</th><th>Sample Value</th><th>Description</th></tr>
- <tr>
- <td><b>includeZero</b></td>
- <td><code>true, false</code></td>
- <td>Usually, dygraphs will use the range of the data plus some padding to
- set the range of the y-axis. If this option is set, the y-axis will always
- include zero, typically as the lowest value. This can be used to avoid
- exaggerating the variance in the data.</td>
- </tr>
-
- <tr>
- <td><b>rollPeriod</b></td>
- <td><code>7</code></td>
- <td>Number of days over which to average data. Discussed extensively above.</td>
- </tr>
-
- <tr>
- <td><b>showRoller</b></td>
- <td><code>true</code></td>
- <td>Should the rolling average period text box be shown? Default is false.</td>
- </tr>
-
- <tr>
- <td><b>colors</b></td>
- <td><code>['red', '#00FF00']</code></td>
- <td>List of colors for the data series. These can be of the form "#AABBCC"
- or "rgb(255,100,200)" or "yellow", etc. If not specified, equally-spaced
- points around a color wheel are used.</td>
- </tr>
-
- <tr>
- <td><b>colorSaturation</b></td>
- <td><code>1.0</code></td>
- <td>If <b>colors</b> is not specified, saturation of the
- automatically-generated data series colors. (0.0-1.0, default:
- 1.0)</td>
- </tr>