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+<!DOCTYPE html><html><head><title>Sample Style Page</title><meta 
charset="utf-8"/><meta content="IE=edge,chrome=1" 
http-equiv="X-UA-Compatible"/><meta name="viewport" 
content="width=device-width, initial-scale=1.0"/><meta class="swiftype" 
name="title" data-type="string" content="Sample Style Page"/><link 
rel="canonical" href="https://docs.prediction.io/samples/"/><link 
href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link 
href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link 
href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800"
 rel="stylesheet"/><link 
href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" 
rel="stylesheet"/><link href="/stylesheets/application-a2a2f408.css" 
rel="stylesheet" type="text/css"/><script 
src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script
 src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-A
 MS-MML_HTMLorMML"></script><script 
src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: 
true });}catch(e){}</script></head><body><div id="global"><header><div 
class="container" id="header-wrapper"><div class="row"><div 
class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a 
href="#"></a><a href="http://predictionio.incubator.apache.org/";><img 
alt="PredictionIO" id="logo" 
src="/images/logos/logo-ee2b9bb3.png"/></a></div><div id="menu-wrapper"><div 
id="pill-wrapper"><a class="pill left" 
href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" 
href="//github.com/apache/incubator-predictionio/">OPEN 
SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md 
hidden-lg" 
src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div 
id="search-bar-row-wrapper"><div class="container-fluid" 
id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 
col-xs-11"><div class="hidden-md hidden-lg" id="mobi
 le-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Sample Style 
Page</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO Docs</h4></div><div 
class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img 
id="left-menu-indicator" 
src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 
col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form 
class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" 
src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img 
src="/images/icons/search-glass-704bd4ff.png"/><input type="text" 
id="st-search-input" class="st-search-input" placeholder="Search 
Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" 
src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div 
class="mobile-left-menu-toggler hidden-md 
hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div 
class="row"><div id="left-menu-wrapper" class="col-md-3"><nav 
id="nav-main"><ul><l
 i class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO 
(incubating) Documentation</span></a><ul><li class="level-2"><a class="final" 
href="/"><span>Welcome to Apache PredictionIO 
(incubating)</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Getting Started</span></a><ul><li class="level-2"><a 
class="final" href="/start/"><span>A Quick Intro</span></a></li><li 
class="level-2"><a class="final" href="/install/"><span>Installing Apache 
PredictionIO (incubating)</span></a></li><li class="level-2"><a class="final" 
href="/start/download/"><span>Downloading an Engine Template</span></a></li><li 
class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your 
First Engine</span></a></li><li class="level-2"><a class="final" 
href="/start/customize/"><span>Customizing the 
Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a 
class="fin
 al" href="/appintegration/"><span>App Integration Overview</span></a></li><li 
class="level-2"><a class="expandible" href="/sdk/"><span>List of 
SDKs</span></a><ul><li class="level-3"><a class="final" 
href="/sdk/java/"><span>Java & Android SDK</span></a></li><li 
class="level-3"><a class="final" href="/sdk/php/"><span>PHP 
SDK</span></a></li><li class="level-3"><a class="final" 
href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a 
class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li 
class="level-3"><a class="final" href="/sdk/community/"><span>Community Powered 
SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a 
class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li 
class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web 
Service</span></a></li><li class="level-2"><a class="final" 
href="/cli/#engine-commands"><span>Engine Command-line 
Interface</span></a></li><li class="level-2"><a class="final" href="/deploy
 /monitoring/"><span>Monitoring Engine</span></a></li><li class="level-2"><a 
class="final" href="/deploy/engineparams/"><span>Setting Engine 
Parameters</span></a></li><li class="level-2"><a class="final" 
href="/deploy/enginevariants/"><span>Deploying Multiple Engine 
Variants</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Customizing an Engine</span></a><ul><li class="level-2"><a 
class="final" href="/customize/"><span>Learning DASE</span></a></li><li 
class="level-2"><a class="final" href="/customize/dase/"><span>Implement 
DASE</span></a></li><li class="level-2"><a class="final" 
href="/customize/troubleshooting/"><span>Troubleshooting Engine 
Development</span></a></li><li class="level-2"><a class="final" 
href="/api/current/#package"><span>Engine Scala 
APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Collecting and Analyzing Data</span></a><ul><li 
class="level-2"><a class="final" href="/datacollection/"><span>Event
  Server Overview</span></a></li><li class="level-2"><a class="final" 
href="/cli/#event-server-commands"><span>Event Server Command-line 
Interface</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/eventapi/"><span>Collecting Data with 
REST/SDKs</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li 
class="level-2"><a class="final" 
href="/datacollection/webhooks/"><span>Unifying Multichannel Data with 
Webhooks</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/channel/"><span>Channel</span></a></li><li 
class="level-2"><a class="final" 
href="/datacollection/batchimport/"><span>Importing Data in 
Batch</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/analytics/"><span>Using Analytics 
Tools</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Choosing an Algorithm(s)</span></a><ul><li class="level-2"><a 
class="final" 
 href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li 
class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to 
Another Algorithm</span></a></li><li class="level-2"><a class="final" 
href="/algorithm/multiple/"><span>Combining Multiple 
Algorithms</span></a></li><li class="level-2"><a class="final" 
href="/algorithm/custom/"><span>Adding Your Own 
Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>ML Tuning and Evaluation</span></a><ul><li class="level-2"><a 
class="final" href="/evaluation/"><span>Overview</span></a></li><li 
class="level-2"><a class="final" 
href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li 
class="level-2"><a class="final" 
href="/evaluation/evaluationdashboard/"><span>Evaluation 
Dashboard</span></a></li><li class="level-2"><a class="final" 
href="/evaluation/metricchoose/"><span>Choosing Evaluation 
Metrics</span></a></li><li class="level-2"><a class="final" href="
 /evaluation/metricbuild/"><span>Building Evaluation 
Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>System Architecture</span></a><ul><li class="level-2"><a 
class="final" href="/system/"><span>Architecture Overview</span></a></li><li 
class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using 
Another Data Store</span></a></li></ul></li><li class="level-1"><a 
class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li 
class="level-2"><a class="final" 
href="/gallery/template-gallery/"><span>Browse</span></a></li><li 
class="level-2"><a class="final" 
href="/community/submit-template/"><span>Submit your Engine as a 
Template</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a 
class="final" href="/demo/tapster/"><span>Comics Recommendation 
Demo</span></a></li><li class="level-2"><a class="final" 
href="/demo/community/"><span>Community
  Contributed Demo</span></a></li><li class="level-2"><a class="final" 
href="/demo/textclassification/"><span>Text Classification Engine 
Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a 
class="final" href="/community/contribute-code/"><span>Contribute 
Code</span></a></li><li class="level-2"><a class="final" 
href="/community/contribute-documentation/"><span>Contribute 
Documentation</span></a></li><li class="level-2"><a class="final" 
href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li 
class="level-2"><a class="final" 
href="/community/contribute-webhook/"><span>Contribute a 
Webhook</span></a></li><li class="level-2"><a class="final" 
href="/community/projects/"><span>Community 
Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" 
href="/resources/faq/"><span>FA
 Qs</span></a></li><li class="level-2"><a class="final" 
href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a 
class="expandible" href="#"><span>Resources</span></a><ul><li 
class="level-2"><a class="final" href="/resources/intellij/"><span>Developing 
Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" 
href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li 
class="level-2"><a class="final" 
href="/resources/glossary/"><span>Glossary</span></a></li></ul></li></ul></nav></div><div
 class="col-md-9 col-sm-12"><div class="content-header hidden-md 
hidden-lg"><div id="page-title"><h1>Sample Style Page</h1></div></div><div 
id="table-of-content-wrapper"><h5>On this page</h5><aside 
id="table-of-contents"><ul> <li> <a href="#alerts">Alerts</a> </li> <li> <a 
href="#text">Text</a> </li> <li> <a href="#lists">Lists</a> </li> <li> <a 
href="#code">Code</a> </li> <li> <a href="#image">Image</a> </li> <li> <a 
href="#quotes">Quotes</a> <
 /li> <li> <a href="#tables">Tables</a> </li> <li> <a href="#other">Other</a> 
</li> </ul> </li> <li> <a href="#heading-1">Heading 1</a> <ul> <li> <a 
href="#heading-2">Heading 2</a> </li> </ul> </aside><hr/><a id="edit-page-link" 
href="https://github.com/apache/incubator-predictionio/tree/livedoc/docs/manual/source/samples/index.html.md";><img
 src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div 
class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Sample 
Style Page</h1></div></div><div class="content"><h2 id='alerts' 
class='header-anchors'>Alerts</h2><h3 id='info' 
class='header-anchors'>Info</h3><p>Markdown: <code>INFO: This is a info 
message!</code> will display this:</p><div class="alert-message info"><p>This 
is a info message!</p></div><h3 id='success' 
class='header-anchors'>Success</h3><p>Markdown: <code>SUCCESS: This is a 
success message!</code> will display this:</p><div class="alert-message 
success"><p>This is a success message!</p></div><h3 
 id='warning' class='header-anchors'>Warning</h3><p>Markdown: <code>WARNING: 
This is a warning message!</code> will display this:</p><div 
class="alert-message warning"><p>This is a warning message!</p></div><h3 
id='danger' class='header-anchors'>Danger</h3><p>Markdown: <code>DANGER: This 
is a danger message!</code> will display this:</p><div class="alert-message 
danger"><p>This is a danger message!</p></div><h3 id='note' 
class='header-anchors'>Note</h3><p>Markdown: <code>NOTE: This is a note 
message!</code> will display this:</p><div class="alert-message note"><p>This 
is a note message!</p></div><h3 id='todo' 
class='header-anchors'>TODO</h3><p>Markdown: <code>TODO: This is a TODO 
message!</code> will display this:</p><div class="alert-message todo"><p>This 
is a TODO message! This message is longer to demonstrate what a multi line 
message would look like. This message is longer to demonstrate what a multi 
line message would look like. This message is longer to demonstrate what a multi
  line message would look like. Yes <strong>bold</strong> and other styling 
still work inside alerts!</p></div><h2 id='text' 
class='header-anchors'>Text</h2><p>This is the normal paragraph font. This is a 
<a href="/samples/tabs">internal link</a>. This is an <a 
href="http://google.com/";>external link</a> This is a <a 
href="https://google.com/";>secure external link</a> This is 
<strong>bold</strong>. This is <em>italic</em>. This is <u>underlined</u>. This 
is <mark>highlighted</mark>. This is <del>strikethough</del>. This is 
<sup>superscript</sup>.</p><p>This is another paragraph.</p><p>View <a 
href="/samples/sizing">additional sizing</a> samples.</p><h2 id='lists' 
class='header-anchors'>Lists</h2> <ul> <li>Bullet 1</li> <li>Bullet 2 <ul> 
<li>Bullet 2.1</li> <li>Bullet 2.2</li> </ul></li> <li>Bullet 3</li> </ul> <ol> 
<li>First item</li> <li>Second item</li> <li>Third item</li> </ol> <h2 
id='code' class='header-anchors'>Code</h2><h3 id='block' 
class='header-anchors'>Block</h3><p>This is
  a Scala code block:</p><div class="highlight scala"><table 
style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: 
right"><pre class="lineno">1
+2
+3
+4
+5</pre></td><td class="code"><pre><span class="k">case</span> <span 
class="k">class</span> <span class="nc">Query</span><span class="o">(</span>
+  <span class="n">user</span><span class="k">:</span> <span 
class="kt">Int</span><span class="o">,</span>
+  <span class="n">num</span><span class="k">:</span> <span 
class="kt">Int</span>
+<span class="o">)</span> <span class="k">extends</span> <span 
class="nc">Serializable</span>
+
+</pre></td></tr></tbody></table> </div> <p>See a full list of <a 
href="/samples/languages">supported languages</a>.</p><h3 id='inline' 
class='header-anchors'>Inline</h3><p>This <code>code is inline</code>.</p><h2 
id='image' class='header-anchors'>Image</h2><p><img alt="Sample Image" 
src="/images/tutorials/rails/localhost-8000-e55d5dd2.png"/></p><h2 id='quotes' 
class='header-anchors'>Quotes</h2> <blockquote> <p>This is a blockquote. 
Don&#39;t use these for anything other actual quotes! Use <a 
href="#alerts">alerts</a> instead.</p></blockquote> <h2 id='tables' 
class='header-anchors'>Tables</h2> <table><thead> <tr> <th>First Header</th> 
<th>Second Header</th> </tr> </thead><tbody> <tr> <td>Content Cell</td> 
<td>Content Cell</td> </tr> <tr> <td>Content Cell</td> <td>Content Cell</td> 
</tr> </tbody></table> <h2 id='other' class='header-anchors'>Other</h2><p>This 
is a horizontal rule:</p> <hr> <p>This is a en dash &ndash; and an em dash 
&mdash; using HTML entities.</p><div>This is inside 
 a div tag.</div> <h1 id='heading-1' class='header-anchors'>Heading 
1</h1><p>This is the normal paragraph font.</p><h2 id='heading-2' 
class='header-anchors'>Heading 2</h2><p>This is the normal paragraph 
font.</p><h3 id='heading-3' class='header-anchors'>Heading 3</h3><p>This is the 
normal paragraph font.</p><h4 id='heading-4' class='header-anchors'>Heading 
4</h4><p>This is the normal paragraph font.</p><h5 id='heading-5' 
class='header-anchors'>Heading 5</h5><p>This is the normal paragraph 
font.</p><h6 id='heading-6' class='header-anchors'>Heading 6</h6><p>This is the 
normal paragraph font.</p></div></div></div></div><footer><div 
class="container"><div class="seperator"></div><div class="row"><div 
class="col-md-6 col-xs-6 footer-link-column"><div 
class="footer-link-column-row"><h4>Community</h4><ul><li><a 
href="//docs.prediction.io/install/" target="blank">Download</a></li><li><a 
href="//docs.prediction.io/" target="blank">Docs</a></li><li><a 
href="//github.com/apache/incubator-predic
 tionio" target="blank">GitHub</a></li><li><a 
href="mailto:user-subscr...@predictionio.incubator.apache.org"; 
target="blank">Subscribe to User Mailing List</a></li><li><a 
href="//stackoverflow.com/questions/tagged/predictionio" 
target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 
col-xs-6 footer-link-column"><div 
class="footer-link-column-row"><h4>Contribute</h4><ul><li><a 
href="//predictionio.incubator.apache.org/community/contribute-code/" 
target="blank">Contribute</a></li><li><a 
href="//github.com/apache/incubator-predictionio" target="blank">Source 
Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" 
target="blank">Bug Tracker</a></li><li><a 
href="mailto:dev-subscr...@predictionio.incubator.apache.org"; 
target="blank">Subscribe to Development Mailing 
List</a></li></ul></div></div></div></div><div id="footer-bottom"><div 
class="container"><div class="row"><div class="col-md-12"><div 
id="footer-logo-wrapper"><img alt="PredictionIO" src="/images/logos/l
 ogo-white-d1e9c6e6.png"/></div><div id="social-icons-wrapper"><a 
class="github-button" href="https://github.com/apache/incubator-predictionio"; 
data-style="mega" data-count-href="/apache/incubator-predictionio/stargazers" 
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data-count-aria-label="# stargazers on GitHub" aria-label="Star 
apache/incubator-predictionio on GitHub">Star</a> <a class="github-button" 
href="https://github.com/apache/incubator-predictionio/fork"; 
data-icon="octicon-git-branch" data-style="mega" 
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data-count-api="/repos/apache/incubator-predictionio#forks_count" 
data-count-aria-label="# forks on GitHub" aria-label="Fork 
apache/incubator-predictionio on GitHub">Fork</a> <script id="github-bjs" 
async="" defer="" src="https://buttons.github.io/buttons.js";></script><a 
href="//www.facebook.com/predictionio" target="blank"><img alt="PredictionIO on 
Twitter" src="/images/icons/twitter-ea9dc152.pn
 g"/></a> <a href="//twitter.com/predictionio" target="blank"><img 
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</div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
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\ No newline at end of file

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+++ b/samples/languages/index.html
@@ -0,0 +1,150 @@
+<!DOCTYPE html><html><head><title>Language Samples</title><meta 
charset="utf-8"/><meta content="IE=edge,chrome=1" 
http-equiv="X-UA-Compatible"/><meta name="viewport" 
content="width=device-width, initial-scale=1.0"/><meta class="swiftype" 
name="title" data-type="string" content="Language Samples"/><link 
rel="canonical" href="https://docs.prediction.io/samples/languages/"/><link 
href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link 
href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link 
href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800"
 rel="stylesheet"/><link 
href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" 
rel="stylesheet"/><link href="/stylesheets/application-a2a2f408.css" 
rel="stylesheet" type="text/css"/><script 
src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script
 src="//cdn.mathjax.org/mathjax/latest/MathJax.js?conf
 ig=TeX-AMS-MML_HTMLorMML"></script><script 
src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: 
true });}catch(e){}</script></head><body><div id="global"><header><div 
class="container" id="header-wrapper"><div class="row"><div 
class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a 
href="#"></a><a href="http://predictionio.incubator.apache.org/";><img 
alt="PredictionIO" id="logo" 
src="/images/logos/logo-ee2b9bb3.png"/></a></div><div id="menu-wrapper"><div 
id="pill-wrapper"><a class="pill left" 
href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" 
href="//github.com/apache/incubator-predictionio/">OPEN 
SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md 
hidden-lg" 
src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div 
id="search-bar-row-wrapper"><div class="container-fluid" 
id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 
col-xs-11"><div class="hidden-md hidden-lg" 
 id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Language 
Samples</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO 
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 ><ul><li class="level-1"><a class="expandible" href="/"><span>Apache 
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 >class="final" href="/"><span>Welcome to Apache PredictionIO 
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href="#"><span>Collecting and Analyzing Data</span></a><ul><li 
class="level-2"><a class="final" href="/datacollection/"><spa
 n>Event Server Overview</span></a></li><li class="level-2"><a class="final" 
href="/cli/#event-server-commands"><span>Event Server Command-line 
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href="/datacollection/eventapi/"><span>Collecting Data with 
REST/SDKs</span></a></li><li class="level-2"><a class="final" 
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href="/datacollection/webhooks/"><span>Unifying Multichannel Data with 
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href="/datacollection/batchimport/"><span>Importing Data in 
Batch</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/analytics/"><span>Using Analytics 
Tools</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Choosing an Algorithm(s)</span></a><ul><li class="level-2"><a 
class="
 final" href="/algorithm/"><span>Built-in Algorithm 
Libraries</span></a></li><li class="level-2"><a class="final" 
href="/algorithm/switch/"><span>Switching to Another 
Algorithm</span></a></li><li class="level-2"><a class="final" 
href="/algorithm/multiple/"><span>Combining Multiple 
Algorithms</span></a></li><li class="level-2"><a class="final" 
href="/algorithm/custom/"><span>Adding Your Own 
Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>ML Tuning and Evaluation</span></a><ul><li class="level-2"><a 
class="final" href="/evaluation/"><span>Overview</span></a></li><li 
class="level-2"><a class="final" 
href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li 
class="level-2"><a class="final" 
href="/evaluation/evaluationdashboard/"><span>Evaluation 
Dashboard</span></a></li><li class="level-2"><a class="final" 
href="/evaluation/metricchoose/"><span>Choosing Evaluation 
Metrics</span></a></li><li class="level-2"><a class="final"
  href="/evaluation/metricbuild/"><span>Building Evaluation 
Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>System Architecture</span></a><ul><li class="level-2"><a 
class="final" href="/system/"><span>Architecture Overview</span></a></li><li 
class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using 
Another Data Store</span></a></li></ul></li><li class="level-1"><a 
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class="level-2"><a class="final" 
href="/gallery/template-gallery/"><span>Browse</span></a></li><li 
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href="/community/submit-template/"><span>Submit your Engine as a 
Template</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a 
class="final" href="/demo/tapster/"><span>Comics Recommendation 
Demo</span></a></li><li class="level-2"><a class="final" 
href="/demo/community/"><span>Co
 mmunity Contributed Demo</span></a></li><li class="level-2"><a class="final" 
href="/demo/textclassification/"><span>Text Classification Engine 
Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a 
class="final" href="/community/contribute-code/"><span>Contribute 
Code</span></a></li><li class="level-2"><a class="final" 
href="/community/contribute-documentation/"><span>Contribute 
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href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li 
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href="/community/projects/"><span>Community 
Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" 
href="/resources/faq/"><
 span>FAQs</span></a></li><li class="level-2"><a class="final" 
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class="level-2"><a class="final" href="/resources/intellij/"><span>Developing 
Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" 
href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li 
class="level-2"><a class="final" 
href="/resources/glossary/"><span>Glossary</span></a></li></ul></li></ul></nav></div><div
 class="col-md-9 col-sm-12"><div class="content-header hidden-md 
hidden-lg"><div id="page-title"><h1>Language Samples</h1></div></div><div 
id="table-of-content-wrapper"><h5>On this page</h5><aside 
id="table-of-contents"><ul> <li> <a href="#plain-text">Plain Text</a> </li> 
<li> <a href="#scala">Scala</a> </li> <li> <a href="#ruby">Ruby</a> </li> <li> 
<a href="#json">JSON</a> </li> <li> <a href="#php">PHP</a> </li> <li> <a 
href="#python">Py
 thon</a> </li> </ul> </aside><hr/><a id="edit-page-link" 
href="https://github.com/apache/incubator-predictionio/tree/livedoc/docs/manual/source/samples/languages.html.md";><img
 src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div 
class="content-header hidden-sm hidden-xs"><div id="page-title"><h1>Language 
Samples</h1></div></div><div class="content"><h2 id='plain-text' 
class='header-anchors'>Plain Text</h2><p>This is a sample code block with no 
language.</p><div class="highlight shell"><table style="border-spacing: 
0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre 
class="lineno">1
+2
+3
+4</pre></td><td class="code"><pre><span class="gp">$ </span><span 
class="nv">$PIO_HOME</span>/bin/pio eventserver
+<span class="gp">$ </span><span class="nb">cd</span> /path/to/engine
+<span class="gp">$ </span>../bin/pio train
+<span class="gp">$ </span>../bin/pio deploy
+</pre></td></tr></tbody></table> </div> <h2 id='scala' 
class='header-anchors'>Scala</h2><p>This is a sample Scala code block:</p><div 
class="highlight scala"><table style="border-spacing: 0"><tbody><tr><td 
class="gutter gl" style="text-align: right"><pre class="lineno">1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11</pre></td><td class="code"><pre><span class="k">class</span> <span 
class="nc">Preparator</span>
+  <span class="k">extends</span> <span class="nc">PPreparator</span><span 
class="o">[</span><span class="kt">TrainingData</span>, <span 
class="kt">PreparedData</span><span class="o">]</span> <span class="o">{</span>
+
+  <span class="k">def</span> <span class="n">prepare</span><span 
class="o">(</span><span class="n">sc</span><span class="k">:</span> <span 
class="kt">SparkContext</span><span class="o">,</span> <span 
class="n">trainingData</span><span class="k">:</span> <span 
class="kt">TrainingData</span><span class="o">)</span><span class="k">:</span> 
<span class="kt">PreparedData</span> <span class="o">=</span> <span 
class="o">{</span>
+    <span class="k">new</span> <span class="nc">PreparedData</span><span 
class="o">(</span><span class="n">ratings</span> <span class="k">=</span> <span 
class="n">trainingData</span><span class="o">.</span><span 
class="n">ratings</span><span class="o">)</span>
+  <span class="o">}</span>
+<span class="o">}</span>
+
+<span class="k">class</span> <span class="nc">PreparedData</span><span 
class="o">(</span>
+  <span class="k">val</span> <span class="n">ratings</span><span 
class="k">:</span> <span class="kt">RDD</span><span class="o">[</span><span 
class="kt">Rating</span><span class="o">]</span>
+<span class="o">)</span>
+</pre></td></tr></tbody></table> </div> <h2 id='ruby' 
class='header-anchors'>Ruby</h2><p>This is a sample Ruby code block:</p><div 
class="highlight ruby"><table style="border-spacing: 0"><tbody><tr><td 
class="gutter gl" style="text-align: right"><pre class="lineno">1
+2
+3
+4
+5</pre></td><td class="code"><pre><span class="k">class</span> <span 
class="nc">UsersController</span> <span class="o">&lt;</span> <span 
class="no">ApplicationController</span>
+  <span class="k">def</span> <span class="nf">index</span>
+    <span class="vi">@users</span> <span class="o">=</span> <span 
class="no">User</span><span class="p">.</span><span 
class="nf">order</span><span class="p">(</span><span class="s1">'reviews_count 
DESC'</span><span class="p">).</span><span class="nf">limit</span><span 
class="p">(</span><span class="mi">20</span><span class="p">)</span>
+  <span class="k">end</span>
+<span class="k">end</span>
+</pre></td></tr></tbody></table> </div> <h2 id='json' 
class='header-anchors'>JSON</h2><p>This is a sample JSON code block:</p><div 
class="highlight json"><table style="border-spacing: 0"><tbody><tr><td 
class="gutter gl" style="text-align: right"><pre class="lineno">1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14</pre></td><td class="code"><pre><span class="p">{</span><span class="w">
+  </span><span class="err">...</span><span class="w">
+  </span><span class="s2">"algorithms"</span><span class="p">:</span><span 
class="w"> </span><span class="p">[</span><span class="w">
+    </span><span class="p">{</span><span class="w">
+      </span><span class="s2">"name"</span><span class="p">:</span><span 
class="w"> </span><span class="s2">"als"</span><span class="p">,</span><span 
class="w">
+      </span><span class="s2">"params"</span><span class="p">:</span><span 
class="w"> </span><span class="p">{</span><span class="w">
+        </span><span class="s2">"rank"</span><span class="p">:</span><span 
class="w"> </span><span class="mi">10</span><span class="p">,</span><span 
class="w">
+        </span><span class="s2">"numIterations"</span><span 
class="p">:</span><span class="w"> </span><span class="mi">20</span><span 
class="p">,</span><span class="w">
+        </span><span class="s2">"lambda"</span><span class="p">:</span><span 
class="w"> </span><span class="mf">0.01</span><span class="w">
+      </span><span class="p">}</span><span class="w">
+    </span><span class="p">}</span><span class="w">
+  </span><span class="p">]</span><span class="w">
+  </span><span class="err">...</span><span class="w">
+</span><span class="p">}</span><span class="w">
+</span></pre></td></tr></tbody></table> </div> <h2 id='php' 
class='header-anchors'>PHP</h2><p>This is a sample PHP code block:</p><div 
class="highlight php"><table style="border-spacing: 0"><tbody><tr><td 
class="gutter gl" style="text-align: right"><pre class="lineno">1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19</pre></td><td class="code"><pre><span class="cp">&lt;?php</span>
+<span class="k">require_once</span><span class="p">(</span><span 
class="s2">"vendor/autoload.php"</span><span class="p">);</span>
+<span class="k">use</span> <span 
class="nx">predictionio\EventClient</span><span class="p">;</span>
+
+<span class="nv">$client</span> <span class="o">=</span> <span 
class="k">new</span> <span class="nx">EventClient</span><span 
class="p">(</span><span class="o">&lt;</span><span class="nx">ACCESS</span> 
<span class="nx">KEY</span><span class="o">&gt;</span><span class="p">,</span> 
<span class="o">&lt;</span><span class="nx">URL</span> <span 
class="nx">OF</span> <span class="nx">EVENTSERVER</span><span 
class="o">&gt;</span><span class="p">);</span>
+
+<span class="c1">// Set the 4 properties for a user
+</span><span class="nv">$client</span><span class="o">-&gt;</span><span 
class="na">createEvent</span><span class="p">(</span><span 
class="k">array</span><span class="p">(</span>
+  <span class="s1">'event'</span> <span class="o">=&gt;</span> <span 
class="s1">'$set'</span><span class="p">,</span>
+  <span class="s1">'entityType'</span> <span class="o">=&gt;</span> <span 
class="s1">'user'</span><span class="p">,</span>
+  <span class="s1">'entityId'</span> <span class="o">=&gt;</span> <span 
class="o">&lt;</span><span class="nx">USER</span> <span 
class="nx">ID</span><span class="o">&gt;</span><span class="p">,</span>
+  <span class="s1">'properties'</span> <span class="o">=&gt;</span> <span 
class="k">array</span><span class="p">(</span>
+    <span class="s1">'attr0'</span> <span class="o">=&gt;</span> <span 
class="o">&lt;</span><span class="nx">VALUE</span> <span class="nx">OF</span> 
<span class="nx">ATTR0</span><span class="o">&gt;</span><span class="p">,</span>
+    <span class="s1">'attr1'</span> <span class="o">=&gt;</span> <span 
class="o">&lt;</span><span class="nx">VALUE</span> <span class="nx">OF</span> 
<span class="nx">ATTR1</span><span class="o">&gt;</span><span class="p">,</span>
+    <span class="s1">'attr2'</span> <span class="o">=&gt;</span> <span 
class="o">&lt;</span><span class="nx">VALUE</span> <span class="nx">OF</span> 
<span class="nx">ATTR2</span><span class="o">&gt;</span><span class="p">,</span>
+    <span class="s1">'plan'</span> <span class="o">=&gt;</span> <span 
class="o">&lt;</span><span class="nx">VALUE</span> <span class="nx">OF</span> 
<span class="nx">PLAN</span><span class="o">&gt;</span>
+    <span class="p">)</span>
+  <span class="p">));</span>
+<span class="cp">?&gt;</span>
+</pre></td></tr></tbody></table> </div> <h2 id='python' 
class='header-anchors'>Python</h2><p>This is a sample Python code 
block:</p><div class="highlight python"><table style="border-spacing: 
0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre 
class="lineno">1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22</pre></td><td class="code"><pre><span class="kn">from</span> <span 
class="nn">predictionio</span> <span class="kn">import</span> <span 
class="n">EventClient</span>
+<span class="kn">from</span> <span class="nn">datetime</span> <span 
class="kn">import</span> <span class="n">datetime</span>
+<span class="kn">import</span> <span class="nn">pytz</span>
+<span class="n">client</span> <span class="o">=</span> <span 
class="n">EventClient</span><span class="p">(</span><span 
class="n">app_id</span><span class="o">=</span><span class="mi">4</span><span 
class="p">,</span> <span class="n">url</span><span class="o">=</span><span 
class="s">"http://localhost:7070";</span><span class="p">)</span>
+
+<span class="n">first_event_properties</span> <span class="o">=</span> <span 
class="p">{</span>
+    <span class="s">"prop1"</span> <span class="p">:</span> <span 
class="mi">1</span><span class="p">,</span>
+    <span class="s">"prop2"</span> <span class="p">:</span> <span 
class="s">"value2"</span><span class="p">,</span>
+    <span class="s">"prop3"</span> <span class="p">:</span> <span 
class="p">[</span><span class="mi">1</span><span class="p">,</span> <span 
class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span 
class="p">],</span>
+    <span class="s">"prop4"</span> <span class="p">:</span> <span 
class="bp">True</span><span class="p">,</span>
+    <span class="s">"prop5"</span> <span class="p">:</span> <span 
class="p">[</span><span class="s">"a"</span><span class="p">,</span> <span 
class="s">"b"</span><span class="p">,</span> <span class="s">"c"</span><span 
class="p">],</span>
+    <span class="s">"prop6"</span> <span class="p">:</span> <span 
class="mf">4.56</span> <span class="p">,</span>
+    <span class="p">}</span>
+<span class="n">first_event_time</span> <span class="o">=</span> <span 
class="n">datetime</span><span class="p">(</span>
+  <span class="mi">2004</span><span class="p">,</span> <span 
class="mi">12</span><span class="p">,</span> <span class="mi">13</span><span 
class="p">,</span> <span class="mi">21</span><span class="p">,</span> <span 
class="mi">39</span><span class="p">,</span> <span class="mi">45</span><span 
class="p">,</span> <span class="mi">618000</span><span class="p">,</span> <span 
class="n">pytz</span><span class="o">.</span><span 
class="n">timezone</span><span class="p">(</span><span 
class="s">'US/Mountain'</span><span class="p">))</span>
+<span class="n">first_event_response</span> <span class="o">=</span> <span 
class="n">client</span><span class="o">.</span><span 
class="n">create_event</span><span class="p">(</span>
+    <span class="n">event</span><span class="o">=</span><span 
class="s">"my_event"</span><span class="p">,</span>
+    <span class="n">entity_type</span><span class="o">=</span><span 
class="s">"user"</span><span class="p">,</span>
+    <span class="n">entity_id</span><span class="o">=</span><span 
class="s">"uid"</span><span class="p">,</span>
+    <span class="n">properties</span><span class="o">=</span><span 
class="n">first_event_properties</span><span class="p">,</span>
+    <span class="n">event_time</span><span class="o">=</span><span 
class="n">first_event_time</span><span class="p">,</span>
+<span class="p">)</span>
+</pre></td></tr></tbody></table> </div> </div></div></div></div><footer><div 
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SDK</span></a></li><li class="level-3"><a class="final" 
href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a 
class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li 
class="level-3"><a class="final" href="/sdk/community/"><span>Community Powered 
SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a 
class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li 
class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web 
Service</span></a></li><li class="level-2"><a class="final" 
href="/cli/#engine-commands"><span>Engine Command-line 
Interface</span></a></li><li class="level-2"><a class="final" 
href="/deploy/monitoring/">
 <span>Monitoring Engine</span></a></li><li class="level-2"><a class="final" 
href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li 
class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying 
Multiple Engine Variants</span></a></li></ul></li><li class="level-1"><a 
class="expandible" href="#"><span>Customizing an Engine</span></a><ul><li 
class="level-2"><a class="final" href="/customize/"><span>Learning 
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href="/customize/dase/"><span>Implement DASE</span></a></li><li 
class="level-2"><a class="final" 
href="/customize/troubleshooting/"><span>Troubleshooting Engine 
Development</span></a></li><li class="level-2"><a class="final" 
href="/api/current/#package"><span>Engine Scala 
APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Collecting and Analyzing Data</span></a><ul><li 
class="level-2"><a class="final" href="/datacollection/"><span>Event Server 
Overvi
 ew</span></a></li><li class="level-2"><a class="final" 
href="/cli/#event-server-commands"><span>Event Server Command-line 
Interface</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/eventapi/"><span>Collecting Data with 
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href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li 
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href="/datacollection/channel/"><span>Channel</span></a></li><li 
class="level-2"><a class="final" 
href="/datacollection/batchimport/"><span>Importing Data in 
Batch</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/analytics/"><span>Using Analytics 
Tools</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Choosing an Algorithm(s)</span></a><ul><li class="level-2"><a 
class="final" href="/algorit
 hm/"><span>Built-in Algorithm Libraries</span></a></li><li class="level-2"><a 
class="final" href="/algorithm/switch/"><span>Switching to Another 
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href="/algorithm/multiple/"><span>Combining Multiple 
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href="/algorithm/custom/"><span>Adding Your Own 
Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>ML Tuning and Evaluation</span></a><ul><li class="level-2"><a 
class="final" href="/evaluation/"><span>Overview</span></a></li><li 
class="level-2"><a class="final" 
href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li 
class="level-2"><a class="final" 
href="/evaluation/evaluationdashboard/"><span>Evaluation 
Dashboard</span></a></li><li class="level-2"><a class="final" 
href="/evaluation/metricchoose/"><span>Choosing Evaluation 
Metrics</span></a></li><li class="level-2"><a class="final" href="/evaluation/me
 tricbuild/"><span>Building Evaluation Metrics</span></a></li></ul></li><li 
class="level-1"><a class="expandible" href="#"><span>System 
Architecture</span></a><ul><li class="level-2"><a class="final" 
href="/system/"><span>Architecture Overview</span></a></li><li 
class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using 
Another Data Store</span></a></li></ul></li><li class="level-1"><a 
class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li 
class="level-2"><a class="final" 
href="/gallery/template-gallery/"><span>Browse</span></a></li><li 
class="level-2"><a class="final" 
href="/community/submit-template/"><span>Submit your Engine as a 
Template</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a 
class="final" href="/demo/tapster/"><span>Comics Recommendation 
Demo</span></a></li><li class="level-2"><a class="final" 
href="/demo/community/"><span>Community Contributed D
 emo</span></a></li><li class="level-2"><a class="final" 
href="/demo/textclassification/"><span>Text Classification Engine 
Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a 
class="final" href="/community/contribute-code/"><span>Contribute 
Code</span></a></li><li class="level-2"><a class="final" 
href="/community/contribute-documentation/"><span>Contribute 
Documentation</span></a></li><li class="level-2"><a class="final" 
href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li 
class="level-2"><a class="final" 
href="/community/contribute-webhook/"><span>Contribute a 
Webhook</span></a></li><li class="level-2"><a class="final" 
href="/community/projects/"><span>Community 
Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" 
href="/resources/faq/"><span>FAQs</span></a><
 /li><li class="level-2"><a class="final" 
href="/support/"><span>Support</span></a></li></ul></li><li class="level-1"><a 
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class="level-2"><a class="final" href="/resources/intellij/"><span>Developing 
Engines with IntelliJ IDEA</span></a></li><li class="level-2"><a class="final" 
href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li 
class="level-2"><a class="final" 
href="/resources/glossary/"><span>Glossary</span></a></li></ul></li></ul></nav></div><div
 class="col-md-9 col-sm-12"><div class="content-header hidden-md 
hidden-lg"><div id="page-title"><h1>Level 2.1</h1></div></div><div 
id="table-of-content-wrapper"><h5>On this page</h5><aside 
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