Exercise 21. Two smooth density plots 2

In the previous exercise we made the two density plots, one for each sex, using:

heights %>% 
  ggplot(aes(height, group = sex)) + 
  geom_density()

We can also assign groups through the color or fill argument. For example, if you type color = sex ggplot knows you want a different color for each sex. So two densities must be drawn. You can therefore skip the group = sex mapping. Using color has the added benefit that it uses color to distinguish the groups.

This exercise is part of the course

Data Science Visualization - Module 2

View Course

Exercise instructions

Change the density plots from the previous exercise to add color.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

## edit the next line to use color instead of group then add a density layer
heights %>% 
  ggplot(aes(height, group = sex))

Edit and Run Code