| Package | Description | 
|---|---|
| org.hipparchus.stat.descriptive.moment | 
 Summary statistics based on moments. 
 | 
| Class | Description | 
|---|---|
| GeometricMean | 
 Returns the 
 geometric mean  of the available values. 
 | 
| Kurtosis | 
 Computes the Kurtosis of the available values. 
 | 
| Mean | 
 Computes the arithmetic mean of a set of values. 
 | 
| SecondMoment | 
 Computes a statistic related to the Second Central Moment. 
 | 
| SemiVariance | 
 Computes the semivariance of a set of values with respect to a given cutoff value. 
 | 
| SemiVariance.Direction | 
 The direction of the semivariance - either upside or downside. 
 | 
| Skewness | 
 Computes the skewness of the available values. 
 | 
| StandardDeviation | 
 Computes the sample standard deviation. 
 | 
| Variance | 
 Computes the variance of the available values. 
 | 
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