jsat.utils

Class ArrayUtils

java.lang.Object

jsat.utils.ArrayUtils

public class ArrayUtils
extends Object

Extra utilities for working on array types

Author:

Edward Raff

Method Summary

Modifier and Type	Method and Description
static void	shuffle(int[] array, int from, int to, Random rand) Shuffles the values in the given array
static void	shuffle(int[] array, Random rand) Swaps values in the given array
static void	swap(int[] array, int a, int b) Swaps two indices in the given array

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

shuffle

public static void shuffle(int[] array,
                           Random rand)

Swaps values in the given array

Parameters:

array - the array to swap values in

rand - the source of randomness for shuffling

shuffle

public static void shuffle(int[] array,
                           int from,
                           int to,
                           Random rand)

Shuffles the values in the given array

Parameters:

array - the array to shuffle values in

from - the first index, inclusive, to shuffle from

to - the last index, exclusive, to shuffle from

rand - the source of randomness for shuffling

swap

public static void swap(int[] array,
                        int a,
                        int b)

Swaps two indices in the given array

Parameters:

array - the array to perform the sawp in

a - the first index

b - the second index