January 2019
Beginner to intermediate
670 pages
18h 32m
English
book
Tableau 2019.x Cookbook
by Dmitry Anoshin, Teodora Matic, Slaven Bogdanovic, Tania Lincoln, Dmitrii Shirokov
Content preview from Tableau 2019.x Cookbook
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How it works...
In this recipe, we learned how to detect outliers. Outliers are extreme values that stand out from the other values in the sample. In order to detect outliers, we relied on a commonly used conventional rule—outliers are all values that deviate from the mean more than +/-2.5 standard deviations, which excludes around 1% of our sample.
In this example, we are able to see how outliers can influence statistical models. We can see that the model that includes outliers has a much steeper slope than the model that excludes outliers, meaning that they have pulled our linear model away from the majority of data, giving us skewed results. When interpreting results, we have to pay special attention to this (so-called leverage) effect. ...
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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.