Introduction to the par() function

You already saw how the mfrow parameter to the par() function could be used to plot multiple graphs in one pane. The par() function also allows you to set many other graphics parameters, whose values will remain in effect until they are reset by a subsequent par() call.

Specifically, a call to the par() function with no parameters specified will return a list whose element names each specify a graphics parameter and whose element values specify the corresponding default values of these parameters. These parameters may be set by a call in the form par(name = value) where name is the name of the parameter to be set and value is the value to be assigned to this parameter.

The purpose of this exercise is to give an idea of what these graphics parameters are. In the subsequent exercises we'll show how some of these parameters can be used to enhance plot results.

Capture the return from the par() function as the character vector plot_pars.
Show the names of these graphics parameters by calling names() on plot_pars.
Show the number of parameters in this list by calling length().

Exercise

Introduction to the par() function

Instructions