R Programming Fundamentals

Using R and RStudio

Out of the box, R is completely usable. Open R on your machine. Let's use R for some basic arithmetic such as addition, multiplication, subtraction, and division. The following screenshot demonstrates this:

It also provides functions such as sum() and sqrt() for addition and calculation of the square root. The following screenshot shows this in action:

R can—and will—do basic arithmetic like a calculator, using symbols you're familiar with. One you may not have used before is exponentiate, where you use two asterisks, for ...