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| |
| # 快速开始 |
| |
| ## 什么是 UDF 函数库 |
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| 对基于时序数据的应用而言，数据质量至关重要。**UDF 函数库** 基于 IoTDB 用户自定义函数 (UDF)，实现了一系列关于数据质量的函数，包括数据画像、数据质量评估与修复等，有效满足了工业领域对数据质量的需求。 |
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| ## 快速开始 |
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| 1. 下载包含全部依赖的 jar 包和注册脚本； |
| 2. 将 jar 包复制到 IoTDB 程序目录的`ext\udf`目录下； |
| 3. 运行`sbin\start-server.bat`（在 Windows 下）或`sbin\start-server.sh`（在 Linux 或 MacOS 下）以启动 IoTDB 服务器； |
| 4. 将注册脚本复制到 IoTDB 的程序目录下（与`sbin`目录同级的根目录下），修改脚本中的参数（如果需要）并运行注册脚本以注册 UDF。 |
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| ## 下载 |
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| 由于我们的代码正在审核中，Apache仓库中目前还没有代码。在审核完成之前，您可以前往我们的[旧网页](https://thulab.github.io/iotdb-quality/zh/Download.html)下载上述文件。 |
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