Chapter 4 Working with data

Typically, a dataset will take the form of a data frame (or a tibble) where each column is a vector representing a single variable and each row (i.e. each corresponding position within those vectors) represents a single observation. Each element, then, is the value a particular observation takes on for that particular variable.

Note that you will need access to the DCPS testing.RData and biopics.xls data sets to follow along in this chapter.