Package sim.util.distribution

Class Uniform

java.lang.Object
sim.util.distribution.AbstractDistribution
sim.util.distribution.AbstractContinuousDistribution
sim.util.distribution.Uniform
All Implemented Interfaces:
Serializable
public class Uniform extends AbstractContinuousDistribution
Uniform distribution; Math definition and animated definition.

Instance methods operate on a user supplied uniform random number generator; they are unsynchronized.

Static methods operate on a default uniform random number generator; they are synchronized.

See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected double
    max
     
    protected double
    min
     

    Fields inherited from class sim.util.distribution.AbstractDistribution

    randomGenerator

  • Constructor Summary

    Constructors
    Constructor
    Description
    Uniform(double min, double max, MersenneTwisterFast randomGenerator)
    Constructs a uniform distribution with the given minimum and maximum.
    Uniform(MersenneTwisterFast randomGenerator)
    Constructs a uniform distribution with min=0.0 and max=1.0.

  • Method Summary

    Modifier and Type
    Method
    Description
    double
    cdf(double x)
    Returns the cumulative distribution function (assuming a continous uniform distribution).
    boolean
    nextBoolean()
    Returns a uniformly distributed random boolean.
    double
    nextDouble()
    Returns a uniformly distributed random number in the open interval (min,max) (excluding min and max).
    double
    nextDoubleFromTo(double from, double to)
    Returns a uniformly distributed random number in the open interval (from,to) (excluding from and to).
    float
    nextFloatFromTo(float from, float to)
    Returns a uniformly distributed random number in the open interval (from,to) (excluding from and to).
    int
    nextInt()
    Returns a uniformly distributed random number in the closed interval [min,max] (including min and max).
    int
    nextIntFromTo(int from, int to)
    Returns a uniformly distributed random number in the closed interval [from,to] (including from and to).
    long
    nextLongFromTo(long from, long to)
    Returns a uniformly distributed random number in the closed interval [from,to] (including from and to).
    double
    pdf(double x)
    Returns the probability distribution function (assuming a continous uniform distribution).
    void
    setState(double min, double max)
    Sets the internal state.
    String
    toString()
    Returns a String representation of the receiver.

    Methods inherited from class sim.util.distribution.AbstractDistribution

    apply, apply, getRandomGenerator, setRandomGenerator

    Methods inherited from class java.lang.Object

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

  • Field Details

    • min

      protected double min

    • max

      protected double max

  • Constructor Details

    • Uniform

      public Uniform(double min, double max, MersenneTwisterFast randomGenerator)
      Constructs a uniform distribution with the given minimum and maximum.

    • Uniform

      public Uniform(MersenneTwisterFast randomGenerator)
      Constructs a uniform distribution with min=0.0 and max=1.0.

  • Method Details

    • cdf

      public double cdf(double x)
      Returns the cumulative distribution function (assuming a continous uniform distribution).

    • nextBoolean

      public boolean nextBoolean()
      Returns a uniformly distributed random boolean.

    • nextDouble

      public double nextDouble()
      Returns a uniformly distributed random number in the open interval (min,max) (excluding min and max).
      Specified by:
      nextDouble in class AbstractDistribution

    • nextDoubleFromTo

      public double nextDoubleFromTo(double from, double to)
      Returns a uniformly distributed random number in the open interval (from,to) (excluding from and to). Pre conditions: from <= to.

    • nextFloatFromTo

      public float nextFloatFromTo(float from, float to)
      Returns a uniformly distributed random number in the open interval (from,to) (excluding from and to). Pre conditions: from <= to.

    • nextInt

      public int nextInt()
      Returns a uniformly distributed random number in the closed interval [min,max] (including min and max).
      Overrides:
      nextInt in class AbstractDistribution

    • nextIntFromTo

      public int nextIntFromTo(int from, int to)
      Returns a uniformly distributed random number in the closed interval [from,to] (including from and to). Pre conditions: from <= to.

    • nextLongFromTo

      public long nextLongFromTo(long from, long to)
      Returns a uniformly distributed random number in the closed interval [from,to] (including from and to). Pre conditions: from <= to.

    • pdf

      public double pdf(double x)
      Returns the probability distribution function (assuming a continous uniform distribution).

    • setState

      public void setState(double min, double max)
      Sets the internal state.

    • toString

      public String toString()
      Returns a String representation of the receiver.
      Overrides:
      toString in class Object