August 2022
Beginner to intermediate
463 pages
9h 22m
Chinese
Content preview from Tableau Prep即学即用
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50
｜
第
5
章
的人员，他们可能已经与其他人合作或自己创建了文件。以下是一些可能的来源以
及与每个来源相关的一些注意事项：
计算机上自己创建的文件
建立自己的数据集是工作场所的一项常见任务。你可能会从你阅读的报告中获
取数据，收集记录，或汇总其他人发送给你的数据集。
计算机上他人创建的文件
电子邮件数据库摘录、调查报告或市场研究也是常见的数据来源。这些数据最
大的问题是确保能被频繁的更新，以保持分析及时有效。这里的难点，不在于
向谁询问当前的信息和见解，而是等待他们的回复。
云存储
云计算机和服务器上的团队网盘带来了更多的挑战，因为多人将在共享网盘上
添加文件或编辑现有文件，这使得追踪信息来源变得更加困难。例如，了解数
据点是如何定义的，应用了哪些汇总，或者删除了哪些数据，都会比较困难。
即使是刷新数据集的任务，也会因为难以追踪文件的来源而变得困难重重。
在互联网上
现在许多文件都是由网站上下载的文件组成的。下载的文件类型将影响其结构
的完善程度，从而对准备数据进行分析时可能需要克服的困难产生影响。
这些灵活性意味着你的文件将包含许多有用的数据
bit
（比特）。无论是预算编制、
目标，还是将应用于盈利的最新重组结构，都需要自如地准备这些数据集进行分析。
但现在，可以使用
Prep Builder
将有用的数据从糟粕中分离出来，并在准备分析时
对数据进行结构化处理，而不是通过手动操作来完成。
5.3
如何在
Prep
中连接到文件
Tableau Prep Builder
的主屏幕与
Tableau Desktop
的主屏幕非常相似。要进行任何数 ...
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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.