Package evo.search.util

Class RandomUtils

java.lang.Object

evo.search.util.RandomUtils

public class RandomUtils
extends Object

All utility methods associated with randomness.

Constructor Summary

Constructors

Constructor	Description
RandomUtils()

Method Summary

Modifier and Type	Method	Description
static DiscreteGene	generatePoint(int positions, double minDistance, double maxDistance)	Returns a shuffled DiscreteGene.
static double	inRange(double min, double max)	Returns a random double value between min (inclusive) and max (inclusive).
static int	inRange(int min, int max)	Returns a random int value between min (inclusive) and max (exclusive).

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomUtils

public RandomUtils()

Method Detail

inRange

public static int inRange(int min,
                          int max)

Returns a random int value between min (inclusive) and max (exclusive). Utilizes the RandomRegistry from jenetics for thread-safety.

Parameters:

min - Lower range boundary (inclusive).

max - Upper range boundary (exclusive).

Returns:

Random int value between min (inclusive) and max (exclusive).

inRange

public static double inRange(double min,
                             double max)

Returns a random double value between min (inclusive) and max (inclusive). Utilizes the RandomRegistry from jenetics for thread-safety.

Parameters:

min - Lower range boundary (inclusive).

max - Upper range boundary (inclusive).

Returns:

Random double value between min (inclusive) and max (inclusive).

generatePoint

public static DiscreteGene generatePoint(int positions,
                                         double minDistance,
                                         double maxDistance)

Returns a shuffled DiscreteGene. The point's position is randomly selected in the range [0, positions] and the distance is chosen in the range [minDistance, maxDistance). Utilizes the RandomRegistry from jenetics for thread-safety.

Parameters:

positions - upper boundary for the points position

minDistance - Minimal distance for the point (inclusive).

maxDistance - Maximal distance for the point (exclusive).

Returns:

shuffled discrete point

See Also:

Random.nextDouble()