| 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 | Interface and Description | 
|---|---|
interface  | 
StorelessUnivariateStatistic
Extends the definition of  
UnivariateStatistic with
 StorelessUnivariateStatistic.increment(double) and StorelessUnivariateStatistic.incrementAll(double[]) methods for adding
 values and updating internal state. | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
AbstractStorelessUnivariateStatistic
Abstract base class for implementations of the
  
StorelessUnivariateStatistic interface. | 
class  | 
AbstractUnivariateStatistic
Abstract base class for implementations of the
  
UnivariateStatistic interface. | 
| Modifier and Type | Method and Description | 
|---|---|
UnivariateStatistic | 
UnivariateStatistic.copy()
Returns a copy of the statistic with the same internal state. 
 | 
abstract UnivariateStatistic | 
AbstractUnivariateStatistic.copy()
Returns a copy of the statistic with the same internal state. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
double | 
DescriptiveStatistics.apply(UnivariateStatistic stat)
Apply the given statistic to the data associated with this set of statistics. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
GeometricMean
Returns the 
 geometric mean  of the available values. 
 | 
class  | 
Kurtosis
Computes the Kurtosis of the available values. 
 | 
class  | 
Mean
Computes the arithmetic mean of a set of values. 
 | 
class  | 
SecondMoment
Computes a statistic related to the Second Central Moment. 
 | 
class  | 
SemiVariance
Computes the semivariance of a set of values with respect to a given cutoff value. 
 | 
class  | 
Skewness
Computes the skewness of the available values. 
 | 
class  | 
StandardDeviation
Computes the sample standard deviation. 
 | 
class  | 
Variance
Computes the variance of the available values. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
Max
Returns the maximum of the available values. 
 | 
class  | 
Median
Returns the median of the available values. 
 | 
class  | 
Min
Returns the minimum of the available values. 
 | 
class  | 
Percentile
Provides percentile computation. 
 | 
class  | 
PSquarePercentile
A  
StorelessUnivariateStatistic estimating percentiles using the
 P2
 Algorithm as explained by Raj
 Jain and Imrich Chlamtac in
 P2 Algorithm
 for Dynamic Calculation of Quantiles and Histogram Without Storing
 Observations. | 
class  | 
RandomPercentile
A  
StorelessUnivariateStatistic estimating percentiles using the
 RANDOM
 Algorithm. | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
Product
Returns the product of the available values. 
 | 
class  | 
Sum
Returns the sum of the available values. 
 | 
class  | 
SumOfLogs
Returns the sum of the natural logs for this collection of values. 
 | 
class  | 
SumOfSquares
Returns the sum of the squares of the available values. 
 | 
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