October 2013
Beginner
148 pages
3h 38m
English
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Transforming the shape
There are multiple ways to change the shape of the data. Usually, it is just projection or filtering, but there are more complex options too.
Filtering rows
For row filters, the usual naming convention is used; that is, the node names ending with "Filter" give only a single table as a result, while the "Splitter" nodes generate two tables: one for the matches and one for the non-matching rows.
For single-column conditions, the Row Filter (and Row Splitter) node can be used to select rows based on a column value in a range, regular expression, or missing values. It is also possible to keep only these rows or filter these out. For row IDs, you can only use the regular expressions.
The rows can also be filtered by the (one-based) ...
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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.