graphics

  • Data Visualisation in R Using ggplot2

    A major challenge in data analysis is to summarise and present data with informative graphs. The ggplot2 package was specifically designed to help with this task. Since it is a very powerful and well documented package1, this introduction will only focus on its basic syntax, so that the user gets a better understanding of how to read the supporting material on the internet. ggplot graphs are built with some kind of blocks, which usually start with the function ggplot.