11 Intermediate graphs

 

This chapter covers

  • Visualizing bivariate and multivariate relationships
  • Working with scatter and line plots
  • Understanding corrgrams
  • Using mosaic plots

In chapter 6 (basic graphs), we considered a wide range of graph types for displaying the distribution of single categorical or continuous variables. Chapter 8 (regression) reviewed graphical methods that are useful when predicting a continuous outcome variable from a set of predictor variables. In chapter 9 (analysis of variance), we considered techniques that are particularly useful for visualizing how groups differ on a continuous outcome variable. In many ways, this chapter is a continuation and extension of the topics we’ve covered so far.

In this chapter, we’ll focus on graphical methods for displaying relationships between two variables (bivariate relationships) and between many variables (multivariate relationships). For example:

11.1 Scatter plots

11.1.1 Scatter plot matrices

11.1.2 High-density scatter plots

11.1.3 3D scatter plots

11.1.4 Spinning 3D scatter plots

11.1.5 Bubble plots

11.2 Line charts

11.3 Corrgrams

11.4 Mosaic plots

Summary