R/permute.rows.R

In mpath: Regularized Linear Models

### from pamr package
permute.rows <-function(x)
{
        dd <- dim(x)
        n <- dd[1]
        p <- dd[2]
        mm <- runif(length(x)) + rep(seq(n) * 10, rep(p, n))
        matrix(t(x)[order(mm)], n, p, byrow = TRUE)
}