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
Este exercício faz parte do curso
Introduction to R for Finance
Instruções do exercício
- 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.
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
# Add names to your portfolio
# Print portfolio