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Basic Statistics R lab - Getting started (part 1)

Little arithmetics with R

In its most basic form R can be used as a simple calculator. Consider the following arithmetic operators:

• Addition: +

• Subtraction: -

• Multiplication: *

• Division: /

• Exponentiation: ^  The ^ operator raises the number to its left to the power of the number to its right: for example 3^2 is 9.

• Modulo: %%  The modulo returns the remainder of the division of the number to the left by

  the number on its right,     for example 5 modulo 3 or 5 %% 3 is 2.  for example 28 modulo 6 or 28 %% 6 is 4 就是取余数 5➗3=2……3  最后输出的是3  再比如27➗3=9……0最后输出的是0

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• Basic Statistics R lab - Getting started (part 1)