rvectorrandomshuffle

How to randomize a vector

I would like to randomly reorganize the order of the numbers in a vector, in a simple one-line command?

My particular vector V has 150 entries for each value from 1 to 10:

V <- rep(1:10, each=150)
Solution

  • Yes.

    sample(V)

    From ?sample:

    For ‘sample’ the default for ‘size’ is the number of items inferred from the first argument, so that ‘sample(x)’ generates a random permutation of the elements of ‘x’ (or ‘1:x’).