2.8 Plotting

R has great plotting capabilities. Details about plotting functions and a discussion of when different representations are most appropriate are beyond the scope of these notes. This is just to provide you with a list of functions:

• barplot creates a barplot: notice that you first need to construct a so-called contingency table using the function table.

• hist creates an histogram;

• boxplot creates a boxplot;

• plot creates a scatterplot;

There are many functions to customize such plots, and again details can be found in the references given. A package which is often used to create nice data visualization is ggplot2.