Library for performing vector shuffles

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BSD-3-Clause licensed by Callan McGill

This package contains functions for performing in-place Fisher--Yates shuffles on mutable and immutable vectors along with some related functionality. The shuffles are uniform at random amongst all permuations.

For an example of how to use it:

module Main where

import Data.Vector
import Immutable.Shuffle

main :: IO ()
main = do {
shuffleMyVector >>= print;
cycleMyVector   >>= print;
derangeMyVector >>= print;

myVector :: Vector Int
myVector = fromList [1..10]

shuffleMyVector :: IO (Vector Int)
shuffleMyVector = shuffleM myVector

cycleMyVector :: IO (Vector Int)
cycleMyVector = maximalCycleM myVector

derangeMyVector :: IO (Vector Int)
derangeMyVector = derangementM myVector

This gives the following:

>>> main

>>> main



[0.1.1] - 2019-07-18

  • Added sample without replacement, maximal cycle and derangement functions
  • Added test coverage for all new functionality
  • Added example executable

[0.1.0] - 2019-05-02

  • Added Fisher–Yates shuffle algorithms
  • Added test suite