In this chapter, we take a quick look at the packages base, stats, and graphics—three of the packages loaded by default in R. The package base contains things such as the trigonometric function and other mathematical functions, many of the as. and is. functions, the arithmetic operators, the flow control statements, some apply functions, and many other basic functions in R.
The package stats contains many basic statistical functions, such as functions to find the median, the standard deviation, and the variance. It also includes the functions associated with ...
