purrr and scatterplots
Since ggplot() does not accept lists as an input, it can be paired up with purrr to go from a list to a data frame to a ggplot() graph in just a few lines of code.
You will continue to work with the gh_users data for this exercise. You will use a map_*() function to pull out a few of the named elements and transform them into the correct datatype. Then create a scatterplot that compares the user's number of followers to the user's number of public repositories.
Deze oefening maakt deel uit van de cursus
Foundations of Functional Programming with purrr
Oefeninstructies
map()overgh_users, use themap_*()function that creates a data frame, with four columns, named"login","name","followers"and"public_repos".- Pipe that data frame into a scatterplot, where the
xaxis isfollowersandyispublic_repos.
Praktische interactieve oefening
Probeer deze oefening eens door deze voorbeeldcode in te vullen.
# Create a data frame with four columns
map___(___, `[`,
c(___,___,___,___)) %>%
# Plot followers by public_repos
ggplot(.,
aes(x = ___, y = ___)) +
# Create scatter plots
geom____()