ABSTRACT
This chapter focuses on graphics for visualizing categorical data. Although categorical data are extremely common, the techniques for visualizing categorical data, especially in a multivariate setting, are much less well known than the corresponding plot types for continuous variables. For example, the mosaic plot for displaying the relationship between two categorical variables is much less common than the ubiquitous scatterplot for two continuous variables. One purpose of this chapter is to describe functions that can draw plots for multivariate categorical data sets.
