Chapter 13: Numbers

Set up

We have already loaded the R packages you need for this tutorial. Once you start working in RStudio, you will run code like the code shown below to load the R packages you need.

Exercises

All exercises are from R for Data Science 2nd Edition.

Ex 3 in Section 13.4.8

Currently dep_time and sched_dep_time are convenient to look at, but hard to compute with because they’re not really continuous numbers. You can see the basic problem by running the code below: there’s a gap between each hour.

Convert them to a more truthful representation of time (either fractional hours or minutes since midnight).

Open code chunk

Here is a code chunk in case you wish to play around with some code