DblErlang (jasima 3.0.0-RC1 API)

java.lang.Object
- jasima.core.random.continuous.DblSequence
- - jasima.core.random.continuous.DblErlang

All Implemented Interfaces:

Serializable, Cloneable
```
public class DblErlang
extends DblSequence
```
Implementation of the Erlang distribution. It is the distribution of a sum of shape independent exponential variables each with mean scale.
The Erlang distribution is a special case of the Gamma distribution (with the shape parameter being restricted to an integer. For shape=1 it is the same as the Exponential distribution.

Author:

Torsten Hildebrandt

See Also:

Erlang distribution (Wikipedia), Erlang Distribution (MathWorld), Serialized Form

Field Summary
- Fields inherited from class jasima.core.random.continuous.DblSequence
  rndGen

Constructor Summary

Constructors
Constructor Description

DblErlang()

DblErlang(int shape, double scale)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`getNumericalMean()`	Returns the arithmetic mean of the values returned by `DblSequence.nextDbl()`.
`double`	`getScale()`
`int`	`getShape()`
`Pair<Double,Double>`	`getValueRange()`	This method computes the minimum and maximum support values (range of possible values) of this stream.
`double`	`nextDbl()`	Returns the next number in this number stream.
`void`	`setScale(double scale)`	Sets the scale parameter of this distribution.
`void`	`setShape(int shape)`	Sets the shape parameter of this distribution.
`String`	`toString()`

Methods inherited from class jasima.core.random.continuous.DblSequence
clone, createStreamDefFromStream, getName, getRndGen, init, max, min, setName, setRndGen

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - DblErlang
```
public DblErlang()
```
  - DblErlang
```
public DblErlang(int shape,
                 double scale)
```
- Method Detail
  - nextDbl
```
public double nextDbl()
```
    Description copied from class: DblSequence
    
    Returns the next number in this number stream.
    
    Specified by:
    
    nextDbl in class DblSequence
  - getNumericalMean
```
public double getNumericalMean()
```
    Description copied from class: DblSequence
    
    Returns the arithmetic mean of the values returned by DblSequence.nextDbl().
    
    Overrides:
    
    getNumericalMean in class DblSequence
  - getValueRange
```
public Pair<Double,Double> getValueRange()
```
    Description copied from class: DblSequence
    
    This method computes the minimum and maximum support values (range of possible values) of this stream.
    
    Overrides:
    
    getValueRange in class DblSequence
    
    Returns:
    
    A Pair containing the minimum and maximum support values.
  - getShape
```
public int getShape()
```
  - setShape
```
public void setShape(int shape)
```
    Sets the shape parameter of this distribution.
  - getScale
```
public double getScale()
```
  - setScale
```
public void setScale(double scale)
```
    Sets the scale parameter of this distribution.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object