| Copyright | (c) 2009 Oleg Kiselyov Manlio Perillo |
|---|---|
| License | BSD3 (see LICENSE file) |
| Safe Haskell | Safe |
| Language | Haskell98 |
System.Random.Shuffle
Documentation
shuffle :: [a] -> [Int] -> [a] Source #
Given a sequence (e1,...en) to shuffle, and a sequence (r1,...r[n-1]) of numbers such that r[i] is an independent sample from a uniform random distribution [0..n-i], compute the corresponding permutation of the input sequence.
shuffle' :: RandomGen gen => [a] -> Int -> gen -> [a] Source #
Given a sequence (e1,...en) to shuffle, its length, and a random generator, compute the corresponding permutation of the input sequence.
shuffleM :: MonadRandom m => [a] -> m [a] Source #
shuffle' wrapped in a random monad