The R Book

3

Data Input

You can get numbers into R through the keyboard, from the clipboard or from an external file. For a single variable of up to 10 numbers or so, it is probably quickest to type the numbers at the command line, using the concatenate function c like this:

y <- c (6,7,3,4,8,5,6,2)

For intermediate sized variables, you might want to enter data from the keyboard using the scan function. For larger data sets, and certainly for sets with several variables, you should make a dataframe in Excel and read it into R using read.table (p. 98).