|
|||||||||||
PREV PACKAGE NEXT PACKAGE | FRAMES NO FRAMES |
See:
Description
Interface Summary | |
StatisticalSummary | Reporting interface for basic univariate statistics. |
StorelessUnivariateStatistic | Extends the definition of UnivariateStatistic with
StorelessUnivariateStatistic.increment(double) and StorelessUnivariateStatistic.incrementAll(double[]) methods for adding
values and updating internal state. |
UnivariateStatistic | Base evaluation interface implemented by all statistics. |
Class Summary | |
AbstractStorelessUnivariateStatistic | Abstract implementation of the StorelessUnivariateStatistic interface. |
AbstractUnivariateStatistic | Abstract base class for all implementations of the
UnivariateStatistic interface. |
DescriptiveStatistics | Abstract factory class for univariate statistical summaries. |
DescriptiveStatisticsImpl | Default implementation of
DescriptiveStatistics . |
StatisticalSummaryValues | Value object representing the results of a univariate statistical summary. |
SummaryStatistics | Abstract factory class for univariate statistical summaries. |
SummaryStatisticsImpl | Provides a default SummaryStatistics implementation. |
Generic univariate summary statistic objects.
/* evaluation approach */
double[] values = new double[] { 1, 2,
3, 4, 5 };
UnivariateStatistic stat
= new Mean();
System.out.println("mean = " + stat.evaluate(values));
/* incremental approach */
double[] values = new double[] { 1, 2,
3, 4, 5 };
StorelessUnivariateStatistic stat = new Mean();
System.out.println("mean before adding a value is NaN = " + stat.getResult());
for (int i = 0;
i < values.length; i++) {
stat.increment(values[i]);
System.out.println("current mean = " +
stat2.getResult());
}
stat.clear();
System.out.println("mean after clear is NaN = "
+ stat.getResult());
|
|||||||||||
PREV PACKAGE NEXT PACKAGE | FRAMES NO FRAMES |