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2# dygraphs JavaScript charting library
3
4The dygraphs JavaScript library produces interactive, zoomable charts of time series:
5
067641c1 6<img src="https://cloud.githubusercontent.com/assets/98301/5311286/eb760eea-7c10-11e4-9a59-1d144e51a15b.png" width="618" height="322">
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7
8Learn more about it at [dygraphs.com](http://www.dygraphs.com).
9
10Get help with dygraphs on
11[Stack Overflow](http://stackoverflow.com/questions/tagged/dygraphs) (preferred) and
12[Google Groups](http://groups.google.com/group/dygraphs-users)
13
14## Features
15* Plots time series without using an external server or Flash
16* Supports [error bands](http://dygraphs.com/tests/legend-values.html) around data series
067641c1 17* Interactive [pan and zoom](http://dygraphs.com/tests/link-interaction.html)
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18* Displays values [on mouseover](http://dygraphs.com/tests/legend-values.html)
19* Adjustable [averaging period](http://dygraphs.com/tests/temperature-sf-ny.html)
20* Extensive set of [options](http://www.dygraphs.com/options.html) for customization.
21* Compatible with the [Google Visualization API](http://dygraphs.com/data.html#datatable)
22
23## Minimal Example
24```html
25<html>
26<head>
27<script type="text/javascript" src="dygraph-combined.js"></script>
28</head>
29<body>
30<div id="graphdiv"></div>
31<script type="text/javascript">
32 g = new Dygraph(
33 document.getElementById("graphdiv"), // containing div
34 "Date,Temperature\n" + // the data series
35 "2008-05-07,75\n" +
36 "2008-05-08,70\n" +
37 "2008-05-09,80\n",
38 { } // the options
39 );
40</script>
41</body>
42</html>
43```
44
45Learn more by reading [the tutorial](http://www.dygraphs.com/tutorial.html) and
46seeing demonstrations of what dygraphs can do in the
47[gallery](http://www.dygraphs.com/gallery).
48
49## Making Changes
50If you've made a change to dygraphs and would like to contribute it back to the
51community, please follow the [Guide to making dygraphs
52changes](http://dygraphs.com/changes.html).
53
54## License(s)
55dygraphs uses:
56 - UglifyJS (BSD License)
57 - JsDoc Toolkit (MIT license)
58 - console-polyfill (MIT license)
59
60automated tests use:
61 - auto_tests/lib/jquery-1.4.2.js (MIT & GPL2)
62 - auto_tests/lib/Asserts.js (Apache 2.0 License)
63 - auto-tests/lib/JsTestDriver-1.3.3cjar (Apache 2.0 License)
64
65dygraphs is available under the MIT license, included in LICENSE.txt.