All Implemented Interfaces:
Serializable, StorelessUnivariateStatistic, UnivariateStatistic, MathArrays.Function

public class Max extends AbstractStorelessUnivariateStatistic implements Serializable
Returns the maximum of the available values.

  • The result is NaN iff all values are NaN (i.e. NaN values have no impact on the value of the statistic).
  • If any of the values equals Double.POSITIVE_INFINITY, the result is Double.POSITIVE_INFINITY.

Note that this implementation is not synchronized. If multiple threads access an instance of this class concurrently, and at least one of the threads invokes the increment() or clear() method, it must be synchronized externally.

See Also:
  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    private long
    Number of values that have been added
    private static final long
    Serializable version identifier
    private double
    Current value of the statistic
  • Constructor Summary

    Constructors
    Constructor
    Description
    Max()
    Create a Max instance
    Max(Max original)
    Copy constructor, creates a new Max identical to the original
  • Method Summary

    Modifier and Type
    Method
    Description
    void
    Clears the internal state of the Statistic
    Returns a copy of the statistic with the same internal state.
    static void
    copy(Max source, Max dest)
    Copies source to dest.
    double
    evaluate(double[] values, int begin, int length)
    Returns the maximum of the entries in the specified portion of the input array, or Double.NaN if the designated subarray is empty.
    long
    Returns the number of values that have been added.
    double
    Returns the current value of the Statistic.
    void
    increment(double d)
    Updates the internal state of the statistic to reflect the addition of the new value.

    Methods inherited from class org.apache.commons.math3.stat.descriptive.AbstractStorelessUnivariateStatistic

    equals, evaluate, hashCode, incrementAll, incrementAll

    Methods inherited from class org.apache.commons.math3.stat.descriptive.AbstractUnivariateStatistic

    evaluate, getData, getDataRef, setData, setData, test, test, test, test

    Methods inherited from class java.lang.Object

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