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class="vp-sidebar-title">Reference</span><span class="vp-arrow end"></span></button><!----></section></li></ul><!--[--><!----><!--]--></aside><!--[--><main id="main-content" class="vp-page"><!--[--><!--[--><!----><!--]--><!----><nav class="vp-breadcrumb disable"></nav><div class="vp-page-title"><h1><!---->Quick Start</h1><div class="page-info"><!----><!----><span class="page-date-info" aria-label="Writing Date"><svg xmlns="http://www.w3.org/2000/svg" class="icon calendar-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="calendar icon"><path d="M716.4 110.137c0-18.753-14.72-33.473-33.472-33.473-18.753 0-33.473 14.72-33.473 33.473v33.473h66.993v-33.473zm-334.87 0c0-18.753-14.72-33.473-33.473-33.473s-33.52 14.72-33.52 33.473v33.473h66.993v-33.473zm468.81 33.52H716.4v100.465c0 18.753-14.72 33.473-33.472 33.473a33.145 33.145 0 01-33.473-33.473V143.657H381.53v100.465c0 18.753-14.72 33.473-33.473 33.473a33.145 33.145 0 01-33.473-33.473V143.657H180.6A134.314 134.314 0 0046.66 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class="route-link vp-toc-link level2" href="#quick-start-1">Quick Start</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="#download">Download</a></li><!----><!--]--></ul><div class="vp-toc-marker" style="top:-1.7rem;"></div></div><!--[--><!----><!--]--></aside></div><!--[--><!----><!--]--><div class="theme-hope-content"><h1 id="quick-start" tabindex="-1"><a class="header-anchor" href="#quick-start"><span>Quick Start</span></a></h1><h2 id="about" tabindex="-1"><a class="header-anchor" href="#about"><span>About</span></a></h2><p>For applications based on time series data, data quality is vital.<br><strong>UDF Library</strong> is IoTDB User Defined Functions (UDF) about data quality, including data profiling, data quality evalution and data repairing.<br> It effectively meets the demand for data quality in the industrial field.</p><h2 id="quick-start-1" tabindex="-1"><a class="header-anchor" href="#quick-start-1"><span>Quick Start</span></a></h2><ol><li>Download the JAR with all dependencies and the script of registering UDF.</li><li>Copy the JAR package to <code>ext\udf</code> under the directory of IoTDB system.</li><li>Run <code>sbin\start-server.bat</code> (for Windows) or <code>sbin\start-server.sh</code> (for Linux or MacOS) to start IoTDB server.</li><li>Copy the script to the directory of IoTDB system (under the root directory, at the same level as <code>sbin</code>), modify the parameters in the script if needed and run it to register UDF.</li></ol><h2 id="download" tabindex="-1"><a class="header-anchor" href="#download"><span>Download</span></a></h2><p>Since our codes are still under review, there are no codes in Apache repository. 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