April 2024
Beginner to intermediate
244 pages
5h 18m
English
Content preview from Modern Data Analytics in Excel
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Chapter 3. Transforming Rows in Power Query
Chapter 2 served as an introduction to Power Query’s myth-busting capabilities as an ETL tool for Excel. In this and upcoming chapters of Part I, you’ll have the chance to get hands-on practice with common data transformation tasks. The focus of this chapter is on rows.
Data cleaning often involves row manipulation tasks such as sorting, filtering, and removing duplicates. Traditional Excel offers interface-guided methods for these tasks, but they can be cumbersome and hard to replicate. Power Query offers a solution by enabling an auditable and repeatable data cleaning process without coding. To follow the demonstrations in this chapter, please access ch_03.xlsx in the ch_03 folder of the book’s repository.
In the signups worksheet of this workbook, your organization’s party planning committee has been gathering RSVPs and wants the final list to be sorted alphabetically, with duplicates, blanks, and misprints eliminated. The committee is weary of manually sorting and removing unnecessary rows whenever new data is added. They desire a workbook that can be easily refreshed and reused as more individuals register or as new parties are scheduled.
Load this data into Power Query, naming the query signups. Capture all relevant rows in column A and confirm that your table includes headers before proceeding.
Removing the Missing Values
As mentioned in Chapter 2, Power Query provides a dedicated null value to represent missing values. The ...
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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.