July 2016
Beginner to intermediate
462 pages
9h 14m
English
Content preview from Python Data Analysis CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Clipping and filtering outliers
Outliers are a common issue in data analysis. Although an exact definition of outliers doesn't exist, we know that outliers can influence means and regression results. Outliers are values that are anomalous. Usually, outliers are caused by a measurement error, but the outliers are sometimes real. In the second case, we may be dealing with two or more types of data related to different phenomena.
The data for this recipe is described at https://vincentarelbundock.github.io/Rdatasets/doc/robustbase/starsCYG.html (retrieved August 2015). It consists of logarithmic effective temperature and logarithmic light intensity for 47 stars in a certain star cluster. Any astronomers reading this paragraph will know the Hertzsprung-Russell ...
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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.