How to randomize a vector
RVectorRandomShuffleR Problem Overview
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)
R Solutions
Solution 1 - R
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’).
Solution 2 - R
Use sample
function
V<-rep(1:10, each=150)
set.seed(001) # just to make it reproducible
sample(V)