Documentation API of the 'org.apache.commons.math3.stat.descriptive.summary.SumOfLogs' Java class
SumOfLogs
org.apache.commons.math3.stat.descriptive.summary

Class SumOfLogs

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


    public class SumOfLogsextends AbstractStorelessUnivariateStatisticimplements Serializable
    Returns the sum of the natural logs for this collection of values.

    Uses FastMath.log(double) to compute the logs. Therefore,

    • If any of values are < 0, the result is NaN.
    • If all values are non-negative and less than Double.POSITIVE_INFINITY, but at least one value is 0, the result is Double.NEGATIVE_INFINITY.
    • If both Double.POSITIVE_INFINITY and Double.NEGATIVE_INFINITY are among the values, the result is NaN.

    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:
    Serialized Form

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