[R] Flipping a vector

[Marc Schwartz]

On Sun, 2007-03-18 at 02:52 +0000, adschai at optonline.net wrote:
> Hi all - A stupid question here, my apology. I would like to know how can I flip a vector in R? For example, I have a vector:
> 
> a = c(1,2,3)
> 
> I would like my vector b to have the following value
> 
> b = c(1,2,3)

I presume you meant:

b <- c(3, 2, 1)

?

> But what operator I need to put to my original vector 'a' to obtain 'b'? Please let me know. Thank you.

See ?rev

a <- c(1, 2, 3)

b <- rev(a)

> b
[1] 3 2 1


HTH,

Marc Schwartz