Chapter 11 Control Statements

In the past few chapters, we have been relying on a few R packages including ggplot2 for visualization, dplyr for manipulation, readr for export and import data, tidyr for tidying data, and stringr for handling strings. While these packages are super powerful and make writing codes much easier, they still can’t do everything we want. In this chapter, we will introduce a set of control statements, which are essential in programming complex tasks.