[R] Seeking help on permutation

2011-07-22 Thread Megh Dal
Let say, I have a character vector of arbitrary length: Vector - c(a, b, c) Using that vector I would like to create a matrix (with number of columns as 2) with all pairwise combinations of those elements, like: Vector - c(a, b, c) Mat     - rbind(c(a, b), c(a, c), c(b, c)); Mat  # number of

Re: [R] Seeking help on permutation

2011-07-22 Thread Joshua Wiley
Hi, Look at ?combn t(combn(Vector, 2)) gives: [,1] [,2] [1,] a b [2,] a c [3,] b c No idea how it is speed-wise. HTH, Josh On Fri, Jul 22, 2011 at 10:09 AM, Megh Dal megh700...@yahoo.com wrote: Let say, I have a character vector of arbitrary length: Vector - c(a, b, c) Using