How to reverse a List in R?

R – Reverse a List

To reverse a list in R programming, call rev() function and pass given list as argument to it. rev() function returns returns a new list with the contents of given list in reversed order.

The syntax to reverse a list x is

rev(x)

Return Value

The rev() function returns a list.

Examples

In the following program, we take a list in x, and reverse this list using rev().

example.R

x <- list("a", "b", "c")
result = rev(x)
print(result)

Output

[[1]]
[1] "c"

[[2]]
[1] "b"

[[3]]
[1] "a"

Now, let us take a list x with numeric values and reverse it.

example.R

x <- list(5, 25, 125)
result = rev(x)
print(result)

Output

[[1]]
[1] 125

[[2]]
[1] 25

[[3]]
[1] 5

Conclusion

In this R Tutorial, we learned how to reverse a list using rev() function, with the help of examples.