How to Copy a List in R


How to Copy a List in R ?

Answer

In R, you can copy a list using the list() function or the list slice syntax.



✐ Examples

1 Copy List Using list() Function

In this example,

  1. We create a list named original_list using the list() function with some elements.
  2. We assign this list to another variable copied_list.
  3. After the operation, copied_list contains all elements of original_list.
  4. Finally, we print both lists to demonstrate the copy operation.

R Program

original_list <- list(a = 1, b = 2, c = 3)
copied_list <- list(original_list)
print(original_list)
print(copied_list)

Output

List of 3
 $ a: num 1
 $ b: num 2
 $ c: num 3
List of 1
 $ :List of 3
  ..$ a: num 1
  ..$ b: num 2
  ..$ c: num 3

2 Copy List Using List Slice Syntax

In this example,

  1. We create a list named original_list with some elements.
  2. We use the list slice syntax [[]] to create a copy named copied_list.
  3. After the operation, copied_list contains all elements of original_list.
  4. Finally, we print both lists to demonstrate the copy operation.

R Program

original_list <- list(a = 1, b = 2, c = 3)
copied_list <- original_list[[]]
print(original_list)
print(copied_list)

Output

List of 3
 $ a: num 1
 $ b: num 2
 $ c: num 3
List of 3
 $ a: num 1
 $ b: num 2
 $ c: num 3

Summary

In this tutorial, we learned How to Copy a List in R language with well detailed examples.




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