Setting names
If you have an unnamed list, you can, of course, name each element. This can be very useful for being able to call out certain elements in a list, regardless of their order, especially if you are working with a list that may grow or change over time, or if you use the same code on several different lists. For instance, if you have a list that contains, a data frame, a model, and a plot, being able to call out $plot instead of searching to figure out what numbered element of the plot, is much easier.
Cet exercice fait partie du cours
Foundations of Functional Programming with purrr
Instructions
- With a piped workflow:
- Name each element of
sw_filmslist and assign to a new list,sw_films_named. - Iterate over the
titleelement.
- Name each element of
- Check to make sure the new list has names.
Exercice interactif pratique
Essayez cet exercice en complétant cet exemple de code.
# Set names so each element of the list is named for the film title
sw_films_named <- ___ %>%
set_names(map_chr(___, "___"))
# Check to see if the names worked/are correct
names(___)