squidpony.squidmath

Class SpikeDistribution

java.lang.Object

squidpony.squidmath.SpikeDistribution

All Implemented Interfaces:

IDistribution

public class SpikeDistribution
extends java.lang.Object
implements IDistribution

An IDistribution that produces results between -1.0 inclusive and 1.0 exclusive, but is much more likely to produce results near 0.0, and does not "round off" like a Gaussian curve around the midpoint.
Created by Tommy Ettinger on 11/23/2019.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SpikeDistribution.SimpleSpikeDistribution A variant on SpikeDistribution that has its range shrunk and moved from [-1,1) to [0,1).

Nested classes/interfaces inherited from interface squidpony.squidmath.IDistribution

IDistribution.SimpleDistribution

Field Summary

Fields

Modifier and Type	Field and Description
static SpikeDistribution	instance

Fields inherited from interface squidpony.squidmath.IDistribution

EXCLUSIVE_ONE, EXCLUSIVE_ZERO

Constructor Summary

Constructors

Constructor and Description
SpikeDistribution()

Method Summary

Modifier and Type	Method and Description
double	getLowerBound() Gets the lower bound of the distribution, which is -1, inclusive.
double	getMean() Gets the mean value of this distribution (0.0).
double	getUpperBound() Gets the upper bound of the distribution, which is IDistribution.EXCLUSIVE_ONE.
double	nextDouble(IRNG rng) Gets a double between getLowerBound() and getUpperBound() that obeys this distribution.

Methods inherited from class java.lang.Object

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

Field Detail

instance

public static final SpikeDistribution instance

Constructor Detail

SpikeDistribution

public SpikeDistribution()

Method Detail

nextDouble

public double nextDouble(IRNG rng)

Gets a double between getLowerBound() and getUpperBound() that obeys this distribution.

Specified by:

nextDouble in interface IDistribution

Parameters:

rng - an IRNG, such as RNG or GWTRNG, that this will get one or more random numbers from

Returns:

a double within the range of getLowerBound() and getUpperBound()

getLowerBound

public double getLowerBound()

Gets the lower bound of the distribution, which is -1, inclusive.

Specified by:

getLowerBound in interface IDistribution

Returns:

the lower bound of the distribution

getUpperBound

public double getUpperBound()

Gets the upper bound of the distribution, which is IDistribution.EXCLUSIVE_ONE.

Specified by:

getUpperBound in interface IDistribution

Returns:

the upper bound of the distribution

getMean

public double getMean()

Gets the mean value of this distribution (0.0).

Specified by:

getMean in interface IDistribution

Returns:

the mean value of this distribution (0.0)