It is beyond the scope of this book to provide a comprehensive and exhaustive explanation of the data visualization principles and techniques, but in the remaining sections of this chapter, we are going to learn the basic elements of this powerful discipline and how to apply them to our data through the means of the ggplot2
package.
As is often the case, when dealing with data visualization we should start from the final objective to work out the best way to accomplish it. The main objective of data visualization is to effectively communicate an insight contained within a given set of data. We can elaborate a bit more on this. The point here is not to show what your data visualization software is able to do or to impress your audience with bells and whistles. This may seem obvious, but we all know that when the add a neon blinking light to your plot option appears in front of you, it is really hard to resist it.
It is therefore...