What's going to be faster, and why?

General
1 
y <- numeric(0)

z <- c(y, rep(c(TRUE, FALSE), 500000))

OR

z <- numeric(1000000)

z <- rep(c(TRUE, FALSE), 500000)

Why would one prefer one method over the other?

2

did you run them to see that they are different ?
the last couplet ; the first part of it is irrelevant to the second part, you do not get logicals coerced to numeric because there's no numeric involved.

3

This topic was automatically closed 21 days after the last reply. New replies are no longer allowed.