August 2022
Beginner to intermediate
463 pages
9h 22m
Chinese
Content preview from Tableau Prep即学即用
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
366
｜
第
40
章
Tableau Prep
的设计宗旨是简单易用，但脚本步骤的引入对很多用户来说，却处于
易用性的另一端。那么，非程序员如何利用该功能呢？找一个可以帮助你的程序员
吧！这个人可能是同事，也可能是
Tableau
社区中能给予帮助的成员。当然，在使
用脚本之前，你需要信任脚本的来源，以确保你不会被恶意代码造成任何伤害。脚
本文件可以创建一次，然后多次重复使用。
Tableau
社区喜欢分享，因此
Prep
用户
能够利用不断增长的那些有用的脚本。
Script
（脚本）步骤的限制之一是，你需要在你的计算机或你可以连接到的服务器上
安装一个
TabPy
或
Rserve
的版本。这在你的组织中可能是无法实现的，因为有些公
司对哪些程序可以在他们的计算机上运行是有保护的。如果没有这种限制，就能够
使用脚本，这样就可以在需要使用高级技术的流程中节省很多时间和精力。
40.2
在
Prep
中设置计算机以使用脚本
如果你的计算机上有设置
TabPy
或
Rserve
的权限，请按照本节的说明开始操作。本
章将不提供这两种语言的手把手操作说明，而是重点介绍
Python
，它正在成为商业
数据准备领域中最流行的脚本语言。
要在
Prep
中使用
Python
脚本，首先需要将
Python
下载到计算机上。
Anaconda
是
免费的，而且很容易从
anaconda.com
上
Download
（下载）并安装（见图
40-2
）。
图
40
-
2
：Anaconda 的主界面
安装好
Anaconda
后，需要下载
TabPy
。
TabPy
托管在
GitHub
上，如图
40-3
所示。 ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.