| Package | Description | 
|---|---|
| org.hipparchus.stat.descriptive | Generic univariate and multivariate summary statistic objects. | 
| org.hipparchus.stat.descriptive.moment | Summary statistics based on moments. | 
| org.hipparchus.stat.descriptive.rank | Summary statistics based on ranks. | 
| org.hipparchus.stat.descriptive.summary | Other summary statistics. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | StreamingStatisticsComputes summary statistics for a stream of data values added using the
  addValuemethod. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | GeometricMeanReturns the 
 geometric mean  of the available values. | 
| class  | MeanComputes the arithmetic mean of a set of values. | 
| class  | SecondMomentComputes a statistic related to the Second Central Moment. | 
| class  | VarianceComputes the variance of the available values. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | MaxReturns the maximum of the available values. | 
| class  | MinReturns the minimum of the available values. | 
| class  | RandomPercentileA  StorelessUnivariateStatisticestimating percentiles using the
 RANDOM
 Algorithm. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | ProductReturns the product of the available values. | 
| class  | SumReturns the sum of the available values. | 
| class  | SumOfLogsReturns the sum of the natural logs for this collection of values. | 
| class  | SumOfSquaresReturns the sum of the squares of the available values. | 
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