s of a traditional data frame (class <code>data.frame</code>). There are other data structures in R such as lists and matrices; however, in this book we are going to use only data frames, more precisely tibbles (besides spatial data formats in Chapter XYZ).</p>
<p>On the top of the output, you can directly see that our data set consists of <code>format(length(bikes), big.mark = ",")</code> variables (columns) frame with 1,454 observations (rows). Also, the tibble output shows you the first ten rows. Alterna