August 2022
Beginner to intermediate
463 pages
9h 22m
Chinese
Content preview from Tableau Prep即学即用
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388
第
43
章
决定在何处准备数据
和许多数据领域的软件供应商一样，
Tableau
并不是只有一个用于完成所有任务的工
具。坦率地说，这样的工具要么工作起来复杂得令人抓狂，要么在用户需要的功能
上不完善。不过，在
Tableau
平台中拥有多种工具确实带来了另一个问题：某些过
程应该在哪里完成？
43.1
需要考虑的过程
数据准备通常归结为几个关键步骤：
1
．
输入数据。
2
．
连接
/
联合多个数据集。
3
．
转换。
4
．
清理。
5
．
汇总。
6
．
输出数据。
每一个步骤都可能适用于很多假设的情况，但实际上大多数步骤都应该在数据准备
工具中进行。连接、联合和转换是数据准备阶段的常见任务，数据集的最终用户应
该在
Tableau Desktop
中降低这种复杂性。虽然在某些情况下可能需要灵活性（例如，
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