August 2022
Beginner to intermediate
463 pages
9h 22m
Chinese
Content preview from Tableau Prep即学即用
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365
第
40
章
连接编程脚本
在
Prep Builder 2019.3
版本中，产品的开发团队增加了调用编程脚本的功能，所以
现在我们可以在
Prep Builder
中使用原生
Prep
无法使用的功能。
Script
（脚本）步骤（见
图
40-1
）允许你输入别人编写的
Python
或
R
脚本，或者你自己创建的脚本。你可
以使用这些脚本连接到网站
API
或进行数据准备任务，这些任务在
Prep Builder
的
内置功能中是不可能完成的。
图
40
-
1
：脚本步骤图标
本章将探讨在哪些情况下需要将脚本连接到
Prep
中，解释如何设置计算机以使用脚
本功能，并通过一个简短的例子进行讲解。
40.1
何时使用
Prep
中的脚本步骤
简单说来，只要
Prep
不具备实现你的数据准备目标所需的功能，就是你应该使用脚
本步骤的时候。编程是一种非常灵活的方式，可用来指导计算机完成你所需要的任
务。
Python
和
R
编程语言在很多大学都有教授，因为这两种语言有很多软件包。软
件包用一种编程语言来完成常见的任务，使得用户不必从头开始编写所有的指令。
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and much more.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.