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