At this point, we're going to take a short detour away from data so we can start to learn how to use R. The following series of pages contain short videos that demonstrate the concepts we're going to learn, as well as some supplemental readings to help clarify and solidify the concepts.
It is highly recommended that you follow along with the videos, typing in the example commands as they are shown and discussed. After all, learning by doing is one of the best ways to pick up and understand new material.