5.11 Chapter 5 Review Questions
We're going to be referring to a data frame called
BikeCommute. A person who commutes to work on his bike
every day kept track of several variables for 56 trips and put them into
a data frame. Below is the head of the data frame.
| row | Bike | Date | Distance | Time | Minutes | AvgSpeed | TopSpeed | Seconds | Month | MonthNum | MonthStr | DMY |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Steel | 20/01/10 | 27.20 | 1:55:04 | 115.07 | 14.10 | 31.50 | 6904 | 1Jan | 1 | Jan | 2010-01-20 |
| 2 | Carbon | 21/01/10 | 27.46 | 1:55:35 | 115.58 | 14.25 | 30.64 | 6935 | 1Jan | 1 | Jan | 2010-01-21 |
| 3 | Steel | 25/01/10 | 27.20 | 1:55:45 | 115.75 | 14.10 | 30.92 | 6945 | 1Jan | 1 | Jan | 2010-01-25 |
| 4 | Carbon | 26/01/10 | 27.52 | 1:53:56 | 113.93 | 14.49 | 33.02 | 6836 | 1Jan | 1 | Jan | 2010-01-26 |
| 5 | Carbon | 27/01/10 | 27.51 | 1:59:12 | 119.20 | 13.84 | 30.92 | 7152 | 2Feb | 2 | Feb | 2010-01-27 |
| 6 | Steel | 01/02/10 | 27.17 | 1:48:44 | 108.73 | 14.99 | 32.09 | 6524 | 2Feb | 2 | Feb | 2010-02-01 |