Module io.jenetics.base
Package io.jenetics.internal.math

Class Probabilities

java.lang.Object
io.jenetics.internal.math.Probabilities
public final class Probabilities extends Object
Mathematical functions regarding probabilities.
Since:
1.4
Version:
7.2

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final double
    EPSILON
    Values smaller than this value are treated as zero.

  • Method Summary

    Modifier and Type
    Method
    Description
    static boolean
    isOne(double value)
    Return true if the given value can be treated as probability one.
    static boolean
    isZero(double value)
    Return true if the given value can be treated as probability zero.
    static float
    toFloat(int probability)
    Maps the integer probability, within the range [Integer.MIN_VALUE, Integer.MAX_VALUE] back to a float probability within the range [0, 1].
    static int
    toInt(double probability)
    Maps the probability, given in the range [0, 1], to an integer in the range [Integer.MIN_VALUE, Integer.MAX_VALUE].

    Methods inherited from class java.lang.Object

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

  • Field Details

    • EPSILON

      public static final double EPSILON
      Values smaller than this value are treated as zero.
      Since:
      7.2

  • Method Details

    • isZero

      public static boolean isZero(double value)
      Return true if the given value can be treated as probability zero.
      Parameters:
      value - the probability value to test
      Returns:
      true if the given value can be treated as probability 0
      Since:
      7.2

    • isOne

      public static boolean isOne(double value)
      Return true if the given value can be treated as probability one.
      Parameters:
      value - the probability value to test
      Returns:
      true if the given value can be treated as probability 1
      Since:
      7.2

    • toInt

      public static int toInt(double probability)
      Maps the probability, given in the range [0, 1], to an integer in the range [Integer.MIN_VALUE, Integer.MAX_VALUE].
      Parameters:
      probability - the probability to widen.
      Returns:
      the widened probability.
      See Also:

    • toFloat

      public static float toFloat(int probability)
      Maps the integer probability, within the range [Integer.MIN_VALUE, Integer.MAX_VALUE] back to a float probability within the range [0, 1].
      Parameters:
      probability - the integer probability to map.
      Returns:
      the mapped probability within the range [0, 1].
      See Also: