Chapter 3. Basic Visualization Techniques

In this chapter, we will cover the following recipes:

• Looking at your data using the plot() function

• Using pairs.panel() to look at (visualize) correlations between variables

• Adding text to a ggplot2 plot at a custom location

• Changing axes appearance to ggplot2 plot

• Producing a matrix of graphs with ggplot2

• Drawing a route on a map with ggmap

• Making use of the igraph package to draw a network

• Showing communities in a network with the linkcomm package