CODEWITHSUNDEEP
rvectorrandomshuffle
user1723765
user1723765

Reputation: 6399

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)

Upvotes: 103

Views: 124914

Answers (2)

Jilber Urbina
Jilber Urbina

Reputation: 61154

Use sample function 

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

set.seed(001) # just to make it reproducible
sample(V)

Upvotes: 27

Ben Bolker
Ben Bolker

Reputation: 226097

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’).

Upvotes: 170

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