A basic ridgeline plot
Supplied is code to make a ridgeline plot looking at the percentage over the limit drivers were pulled over going by day of the week.
Modify the code to set the kernel width (bandwidth
) to a specified value, change the x-axis limits to get rid of the long tails, and also add a subtitle
letting the reader know the bandwidth you are using.
This exercise is part of the course
Visualization Best Practices in R
Exercise instructions
- Change the
bandwidth
to 3.5 ingeom_density_ridges()
. - Set the
limits
of the x-scale to0
to150
. - Give plot the subtitle
'Gaussian kernel SD = 3.5'
.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
library(ggridges)
md_speeding %>%
mutate(day_of_week = factor(day_of_week, levels = c("Mon","Tues","Wed","Thu","Fri","Sat","Sun") )) %>%
ggplot(aes( x = percentage_over_limit, y = day_of_week)) +
# Set bandwidth to 3.5
geom_density_ridges() +
# add limits of 0 to 150 to x-scale
scale_x_continuous()
# provide subtitle with bandwidth