1. Learn
    2. /
  2. Courses
    3. /
  3. Introduction to Data Visualization with ggplot2

Exercise

Overlapping bar plots

You can customize bar plots further by adjusting the dodging so that your bars partially overlap each other. Instead of using position = "dodge", you're going to use position_dodge(), like you did with position_jitter() in the the previous exercises. Here, you'll save this as an object, posn_d, so that you can easily reuse it.

Remember, the reason you want to use position_dodge() (and position_jitter()) is to specify how much dodging (or jittering) you want.

For this example, you'll use the mtcars dataset.

Instructions 1/2

undefined XP
  • 1
    • Use the functional form of the bar position: replace "dodge" with a call to position_dodge().
    • Set its width to 0.2.
  • 2
    • Set the bar transparency level of the bars to 0.6.