w3resource

R Programming: Get the length of the first two vectors of a list

R Programming: List Exercise-20 with Solution

Write a R program to get the length of the first two vectors of a given list.

Sample list: (g1 = 1:10, g2 = "R Programming", g3 = "HTML")

Sample Solution :

R Programming Code :

# Create a list with three elements
list1 = list(g1 = 1:10, g2 = "R Programming", g3 = "HTML")

# Print a message indicating that the original list will be shown
print("Original list:")

# Print the contents of the original list
print(list1)

# Print a message indicating that the length of 'g1' and 'g2' will be shown
print("Length of the vector 'g1' and 'g2' of the said list")

# Print the length of the first vector in the list
print(length(list1$g1))

# Print the length of the second vector in the list
print(length(list1$g2))

Output:

[1] "Original list:"
$g1
 [1]  1  2  3  4  5  6  7  8  9 10

$g2
[1] "R Programming"

$g3
[1] "HTML"

[1] "Length of the vector 'g1' and 'g2' of the said list"
[1] 10
[1] 1                         

Explanation:

  • Create a List: list1 = list(g1 = 1:10, g2 = "R Programming", g3 = "HTML") creates a list named list1 with three elements: g1 (a vector of integers from 1 to 10), g2 (a character string "R Programming"), and g3 (a character string "HTML").
  • Print Original List: print("Original list:") followed by print(list1) displays the message "Original list:" and then prints the contents of list1.
  • Print Lengths of Vectors: print("Length of the vector 'g1' and 'g2' of the said list") is followed by print(length(list1$g1)) and print(length(list1$g2)) to show the lengths of the vectors g1 and g2. list1$g1 has a length of 10, and list1$g2 has a length of 1.

R Programming Code Editor:



Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a R program to assign new names "a", "b" and "c" to the elements of a given list.
Next: Write a R program to find all elements of a given list that are not in another given list.

Test your Programming skills with w3resource's quiz.

What is the difficulty level of this exercise?



Become a Patron!

Follow us on Facebook and Twitter for latest update.

It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.

https://w3resource.com/r-programming-exercises/list/r-programming-list-exercise-20.php