If you mean you need a matrix of that size, matrix(1, nrow=200, ncol=2) On Thu, Oct 29, 2015 at 1:07 PM, thanoon younis <thanoon.younis80 at gmail.com> wrote: > Dear Members, > > I want to simulate a vector of constants values with dimention = 200x2 and > all values of this vector are 1. > > Any help please. > > > Regards >