Create data in R

Use R as a calculator

You can start learning R by using it as a simple calculator. Let’s enter some basic formulae

The symbols used for simple arithmetic are the same in R as they are in Excel:

• Addition+
• Subtraction -
• Multiplication *
• Division /
• To the power of ^

1 + 1

[1] 2

28 / 7

[1] 4

Mathematical functions

Base R includes all the standard mathematical functions:

sqrt(9)

[1] 3

log(10)

[1] 2.302585

Add comments and notes

If you want to add notes to your script, to help you remember what the code does, type a # symbol before your note. R ignores anything written on a line after the #

# This is a comment - note that it starts with a '#' and R does nothing with it