Chapter 7 Visualising data

In the previous sections we have looked at a number of ways to import data, access data, summarise data. We should now consider how we best present data in a graphical way. R is endowed with a number of native and add-on packages that facilitate the preparation of figures, diagrams and graphs. In this section we will explore plots prepared using the built-in plotting functions, which will give you a quick way to visualise your data.

The plots covered are

• boxplots
• histograms
• density
• scatterplots
• bar charts