\name{permutations}\alias{permutations}\title{All permutations of integers 1:n}\description{  Returns a matrix containing all permutations of the integers  \code{1:n} (one permutation per row).}\usage{permutations(n)}\arguments{  \item{n}{Number of element to permute.}}\author{Friedrich Leisch}\examples{permutations(3)}\keyword{datagen}