When we work with R, we often do this using a command line in which we type commands and it responds to those commands. We will return to variables in a little while, but if we want R to print out the...When we work with R, we often do this using a command line in which we type commands and it responds to those commands. We will return to variables in a little while, but if we want R to print out the word hello then we need to contain it in quotation marks, telling R that it is a character string. Another important one is real numbers, which are the most common kind of numbers that we will deal with in statistics, which span the entire number line including the spaces in between the integers.
