Named lists
Knowing how forgetful you are, you decide it would be important to add names to your list so you can remember what each element is describing. There are two ways to do this!
You could name the elements as you create the list with the form name = value
:
my_list <- list(my_words = words, my_numbers = numbers)
Or, if the list was already created, you could use names()
:
my_list <- list(words, numbers)
names(my_list) <- c("my_words", "my_numbers")
Both would result in:
my_list
$my_words
[1] "I <3 R"
$my_numbers
[1] 42 24
This exercise is part of the course
Introduction to R for Finance
Exercise instructions
- The
portfolio
list is available to work with. - Use
names()
to add the following names to your list:"portfolio_name"
,"apple"
,"ibm"
,"correlation"
, in that order. - Print
portfolio
to see your newly named list.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Add names to your portfolio
# Print portfolio