GeometricMeanCalculator (OpenGamma Strata)

java.lang.Object
- com.opengamma.strata.math.impl.statistics.descriptive.GeometricMeanCalculator

All Implemented Interfaces:

Function<double[],Double>
```
public class GeometricMeanCalculator
extends Object
implements Function<double[],Double>
```
Calculates the geometric mean of a series of data.
The geometric mean $\mu$ of a series of elements $x_1, x_2, \dots, x_n$ is given by: $$ \begin{align*} \mu = \left({\prod\limits_{i=1}^n x_i}\right)^{\frac{1}{n}} \end{align*} $$

- Constructor Summary
  
  Constructors
  Constructor Description
  
  GeometricMeanCalculator()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  Double apply(double[] x)
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  - Methods inherited from interface java.util.function.Function
    andThen, compose

- Constructor Detail
  - GeometricMeanCalculator
```
public GeometricMeanCalculator()
```
- Method Detail
  - apply
```
public Double apply(double[] x)
```
    Specified by:
    
    apply in interface Function<double[],Double>
    
    Parameters:
    
    x - The array of data, not null or empty
    
    Returns:
    
    The geometric mean