July 2012
Beginner
408 pages
9h 17m
English
Content preview from R For Dummies
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Chapter 14
Summarizing Data
In This Chapter
Using statistical measures to describe your variables
Using convenience functions to summarize variables and data frames
Comparing two groups
It’s time to get down to the core business of R: statistics! Because R is designed to do just that, you can apply most common statistical techniques with a single command. Moreover, in general, these commands are very well documented both in the Help files and on the web. If you need more advanced methods or to implement cutting-edge research, very often there’s already a package for that, and many of these packages come with a book filled with examples.
It may seem rather odd that it takes us 14 chapters to come to the core business of R. Well, it isn’t. The difficult part is very often getting the data in the right format. After you’ve done that, R allows you to carry out the planned analyses rather easily. To see just how easy it is, read on.
R allows you to do just about anything you want; also, the analysis you carry out doesn’t make sense at all. R gives you the correct calculation, but that’s ...
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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.
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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.