StatisticalSummary (Commons Math 2.2 API)

All Known Implementing Classes:

AggregateSummaryStatistics, DescriptiveStatistics, StatisticalSummaryValues, SummaryStatistics, SynchronizedDescriptiveStatistics, SynchronizedSummaryStatistics
```
public interface StatisticalSummary
```
Reporting interface for basic univariate statistics.

Version:

$Revision: 811786 $ $Date: 2009-09-06 11:36:08 +0200 (dim. 06 sept. 2009) $

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`double`	`getMax()`	Returns the maximum of the available values
`double`	`getMean()`	Returns the arithmetic mean of the available values
`double`	`getMin()`	Returns the minimum of the available values
`long`	`getN()`	Returns the number of available values
`double`	`getStandardDeviation()`	Returns the standard deviation of the available values.
`double`	`getSum()`	Returns the sum of the values that have been added to Univariate.
`double`	`getVariance()`	Returns the variance of the available values.

- Method Detail
  - getMean
```
double getMean()
```
    Returns the arithmetic mean of the available values
    
    Returns:
    
    The mean or Double.NaN if no values have been added.
  - getVariance
```
double getVariance()
```
    Returns the variance of the available values.
    
    Returns:
    
    The variance, Double.NaN if no values have been added or 0.0 for a single value set.
  - getStandardDeviation
```
double getStandardDeviation()
```
    Returns the standard deviation of the available values.
    
    Returns:
    
    The standard deviation, Double.NaN if no values have been added or 0.0 for a single value set.
  - getMax
```
double getMax()
```
    Returns the maximum of the available values
    
    Returns:
    
    The max or Double.NaN if no values have been added.
  - getMin
```
double getMin()
```
    Returns the minimum of the available values
    
    Returns:
    
    The min or Double.NaN if no values have been added.
  - getN
```
long getN()
```
    Returns the number of available values
    
    Returns:
    
    The number of available values
  - getSum
```
double getSum()
```
    Returns the sum of the values that have been added to Univariate.
    
    Returns:
    
    The sum or Double.NaN if no values have been added