Define your own theme function
In the video you saw how a lot of typing can be saved by replacing code chunks with function calls. You saw how a function is usually defined, now you will apply this knowledge in order to make your previous two theme() calls reusable.
This exercise is part of the course
Communicating with Data in the Tidyverse
Exercise instructions
- Using your new knowledge about function definitions, create a function named
theme_ilo()that encapsulates your theme settings. - The function body should contain both
theme()calls that you would normally apply directly to a plot object:theme_minimal()+ your customizedtheme()function. - Copy what you did before into this
theme_ilo()function, using thetheme()settings provided in the sample code.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# For a starter, let's look at what you did before: adding various theme calls to your plot object
ilo_plot +
theme_minimal() +
theme(
text = element_text(family = "Bookman", color = "gray25"),
plot.subtitle = element_text(size = 12),
plot.caption = element_text(color = "gray30"),
plot.background = element_rect(fill = "gray95"),
plot.margin = unit(c(5, 10, 5, 10), units = "mm")
)
# Define your own theme function below
theme_ilo <- function() {
___() +
___(
___
)
}