March 2024
Intermediate to advanced
814 pages
22h 10m
English
Content preview from Extending Power BI with Python and R - Second Edition
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Using Regular Expressions in Power BI
Often, many data cleansing tasks involve carrying out complex searches and substitutions between strings. The usual search and replace tools are sometimes not enough to get the desired results. For instance, let’s suppose you need to match strings, not in an exact way (for instance, via equality conditions) but using similar criteria between them. Knowing how to use tools such as regular expressions (alias regex) can make all the difference in projects that require high-quality data. To illustrate the power of regular expressions in data cleansing, consider a scenario involving a dataset of user names with inconsistent formatting. Some usernames contain spaces, numbers, special characters, or a mix of ...
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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.