Chapter 1

R: What It Does and How It Does It

IN THIS CHAPTER

Bullet Introducing statistics

Bullet Getting R and RStudio on your computer

Bullet Starting a session with R

Bullet Working with R functions

Bullet Working with R structures

So you’re ready to journey into the wonderful world of R! Designed by and for statisticians and data scientists, R has a short but illustrious history.

In the 1990s, Ross Ihaka and Robert Gentleman developed R at the University of Auckland, New Zealand. The R Core Team and the R Foundation for Statistical Computing support R, which has a huge worldwide user base.

Before I tell you about R, however, I have to introduce you to the world that R lives in — the world of data and statistics.

The Statistical (and Related) Ideas You Just Have to Know

The analytical tools that R provides are based on statistical concepts I help you explore in this section. As you’ll see, these concepts are based on common sense.

Samples and populations

If you watch TV on election night, you know that ...

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