Select every other element from a vector

Question

Let\'s say I had a vector:

remove <- c(17, 18, 19, 20, 24, 25, 30, 31, 44, 45).

How do I select / extract every second value in the vector? L

Answer 1

Just another alternative:

> remove[seq_along(remove) %% 2 > 0]
[1] 17 19 24 30 44