Field Detail

• random

  public static MersenneTwisterFast random

  A random number generator that is initialized with the clock when this class is loaded into the JVM. Use this for all random numbers.

  Note: This method or getting random numbers in not thread-safe. Since MersenneTwisterFast is currently (as of 9/01) not synchronized using this function may cause concurrency issues. Use the static get methods of the MersenneTwisterFast class for access to a single instance of the class, that has synchronization.

Constructor Detail

• MathUtils

  public MathUtils()

Method Detail

• getNormalized

  public static final double[] getNormalized(double[] array)

  Returns:

  a new double array where all the values sum to 1. Relative ratios are preserved.

• getTotal

  public static final double getTotal(double[] array,
                                      int start,
                                      int end)

  Parameters:

  end - the index of the element after the last one to be included

  Returns:

  the total of a the values in a range of an array

• getTotal

  public static final double getTotal(double[] array)

  Returns:

  the total of the values in an array

• getRandomArguments

  public static final double[] getRandomArguments(MultivariateFunction mf)

  Returns:

  a set of valid, but randomly generated, arguments for a particular MultivariateFunction