ExponentialDistribution (SOCR API Specification)

java.lang.Object
- edu.ucla.stat.SOCR.core.SOCRValueSettable
- - edu.ucla.stat.SOCR.core.Distribution
  - - edu.ucla.stat.SOCR.distributions.GammaDistribution
    - - edu.ucla.stat.SOCR.distributions.ExponentialDistribution

All Implemented Interfaces:

IValueSettable, Pluginable, java.util.Observer
```
public class ExponentialDistribution
extends GammaDistribution
```
This class defines the (general) Exponential distribution with rate parameter r and shift parameter s. http://mathworld.wolfram.com/ExponentialDistribution.html .

Field Summary
- Fields inherited from class edu.ucla.stat.SOCR.core.Distribution
  applet, CONTINUOUS, DISCRETE, MAXMGFXVAL, MAXMGFYVAL, MINMGFXVAL, MIXED, name

Constructor Summary

Constructors
Constructor and Description
`ExponentialDistribution()` This default constructor creates a new exponential distribution with rate 1 and shift 0.
`ExponentialDistribution(double r)` This general constructor creates a new exponential distribution with a specified rate
`ExponentialDistribution(double[] distData)`
`ExponentialDistribution(double r, double s)` This general constructor creates a new exponential distribution with a specified rate and shift parameters
`ExponentialDistribution(float[] distData)`

Method Summary

Methods
Modifier and Type	Method and Description
`double`	`getCDF(double x)` This method defines the cumulative distribution function
`double`	`getDensity(double x)` This method defines the getDensity function
`double`	`getMaxDensity()` This method defines the getMaxDensity function
`double`	`getMean()` Compute the mean in closed form
`double`	`getMGF(double t)` Computes the moment generating function in closed form for a parameter t which lies in the domain of the distribution.
`double`	`getMode()` Compute the mean in closed form
`java.lang.String`	`getOnlineDescription()` This method returns an online description of this distribution.
`double`	`getQuantile(double p)` The method defines the getQuantile function
`double`	`getRate()` This method gets the rate
`double`	`getSD()` Compute the variance in closed form
`double`	`getShift()` This method gets the shift
`double`	`getVariance()` Compute the variance in closed form
`void`	`initialize()` used for some subclass to initialize before being used
`double`	`minimum(double[] distData)` The method finds the minimum of a double array
`void`	`paramEstimate(double[] distData)` This method estimates the parameters of this distribution.
`void`	`setRate(double r)` This method sets the rate parameter
`void`	`setShift(double s)` This method sets the Shift parameter
`double`	`simulate()` This method simulates an Exponential variable
`void`	`valueChanged()`

Methods inherited from class edu.ucla.stat.SOCR.distributions.GammaDistribution
getScale, getShape, setParameters

Methods inherited from class edu.ucla.stat.SOCR.core.Distribution
addObserver, betaCDF, comb, factorial, findGFRoot, findRoot, gamma, gammaCDF, getDisplayPane, getDomain, getFailureRate, getGFDerivative, getGFSecondDerivative, getInstance, getLocalHelp, getMean, getMedian, getMgfDomain, getName, getPGF, getPGFDomain, getSampleMoment, getSOCRDistributionFunctors, getSOCRDistributions, getType, getVariance, inverseCDF, logGamma, perm, sampleMean, sampleVar, setApplet, setDomain, setDomain, setMGFDomain, setMGFDomain, setMGFParameters, setMGFParameters, setMGFParameters, setMGFParameters, setParameters, setPGFDomain, setPGFDomain, setPGFParameters, setPGFParameters, setPGFParameters, setPGFParameters, update, valueChanged

Methods inherited from class edu.ucla.stat.SOCR.core.SOCRValueSettable
createComponentSetter, createValueSetter, createValueSetter, createValueSetter, createValueSetter, getComponentSetter, getComponentSetters, getValueSetter, getValueSetters

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

- Constructor Detail
  - ExponentialDistribution
```
public ExponentialDistribution(double[] distData)
```
  - ExponentialDistribution
```
public ExponentialDistribution(float[] distData)
```
  - ExponentialDistribution
```
public ExponentialDistribution(double r)
```
    This general constructor creates a new exponential distribution with a specified rate
  - ExponentialDistribution
```
public ExponentialDistribution(double r,
                       double s)
```
    This general constructor creates a new exponential distribution with a specified rate and shift parameters
  - ExponentialDistribution
```
public ExponentialDistribution()
```
    This default constructor creates a new exponential distribution with rate 1 and shift 0.
- Method Detail
  - initialize
```
public void initialize()
```
    Description copied from class: Distribution
    
    used for some subclass to initialize before being used
    
    Overrides:
    
    initialize in class GammaDistribution
  - valueChanged
```
public void valueChanged()
```
    Overrides:
    
    valueChanged in class GammaDistribution
  - setRate
```
public void setRate(double r)
```
    This method sets the rate parameter
  - setShift
```
public void setShift(double s)
```
    This method sets the Shift parameter
  - getRate
```
public double getRate()
```
    This method gets the rate
  - getShift
```
public double getShift()
```
    This method gets the shift
  - getDensity
```
public double getDensity(double x)
```
    This method defines the getDensity function
    
    Overrides:
    
    getDensity in class GammaDistribution
  - getMaxDensity
```
public double getMaxDensity()
```
    This method defines the getMaxDensity function
    
    Overrides:
    
    getMaxDensity in class GammaDistribution
  - getCDF
```
public double getCDF(double x)
```
    This method defines the cumulative distribution function
    
    Overrides:
    
    getCDF in class GammaDistribution
  - getMGF
```
public double getMGF(double t)
              throws ParameterOutOfBoundsException
```
    Computes the moment generating function in closed form for a parameter t which lies in the domain of the distribution.
    
    Overrides:
    
    getMGF in class GammaDistribution
    
    Throws:
    
    ParameterOutOfBoundsException
  - getQuantile
```
public double getQuantile(double p)
```
    The method defines the getQuantile function
    
    Overrides:
    
    getQuantile in class Distribution
  - getOnlineDescription
```
public java.lang.String getOnlineDescription()
```
    This method returns an online description of this distribution.
    
    Overrides:
    
    getOnlineDescription in class GammaDistribution
  - minimum
```
public double minimum(double[] distData)
```
    The method finds the minimum of a double array
  - getMean
```
public double getMean()
```
    Compute the mean in closed form
    
    Overrides:
    
    getMean in class GammaDistribution
  - getMode
```
public double getMode()
```
    Compute the mean in closed form
  - getVariance
```
public double getVariance()
```
    Compute the variance in closed form
    
    Overrides:
    
    getVariance in class GammaDistribution
  - getSD
```
public double getSD()
```
    Compute the variance in closed form
    
    Overrides:
    
    getSD in class Distribution
  - paramEstimate
```
public void paramEstimate(double[] distData)
```
    This method estimates the parameters of this distribution.
    
    Overrides:
    
    paramEstimate in class GammaDistribution
  - simulate
```
public double simulate()
```
    This method simulates an Exponential variable
    
    Overrides:
    
    simulate in class GammaDistribution

Class ExponentialDistribution

Field Summary

Fields inherited from class edu.ucla.stat.SOCR.core.Distribution

Constructor Summary

Method Summary

Methods inherited from class edu.ucla.stat.SOCR.distributions.GammaDistribution

Methods inherited from class edu.ucla.stat.SOCR.core.Distribution

Methods inherited from class edu.ucla.stat.SOCR.core.SOCRValueSettable

Methods inherited from class java.lang.Object

Constructor Detail

ExponentialDistribution

ExponentialDistribution

ExponentialDistribution

ExponentialDistribution

ExponentialDistribution

Method Detail

initialize

valueChanged

setRate

setShift

getRate

getShift

getDensity

getMaxDensity

getCDF

getMGF

getQuantile

getOnlineDescription

minimum

getMean

getMode

getVariance

getSD

paramEstimate

simulate