edu.ucla.stat.SOCR.distributions
Class HyperbolicSecantDistribution

java.lang.Object
  edu.ucla.stat.SOCR.core.SOCRValueSettable
      edu.ucla.stat.SOCR.core.Distribution
          edu.ucla.stat.SOCR.distributions.HyperbolicSecantDistribution

All Implemented Interfaces:

IValueSettable, Pluginable, java.util.Observer

public class HyperbolicSecantDistribution
extends Distribution

This class encapsulates the Hyperbolic-Secant distribution -- no parameters. http://en.wikipedia.org/wiki/Hyperbolic_secant_distribution.

Field Summary

static double

C

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

applet, CONTINUOUS, DISCRETE, MAXMGFXVAL, MAXMGFYVAL, MINMGFXVAL, MIXED, name

Constructor Summary

HyperbolicSecantDistribution()
This general constructor creates a new HyperbolicSecant distribution with specified parameter values

Method Summary

double	getCDF(double x) This method computes the cumulative distribution function
double	getDensity(double x) This method defines the getDensity function http://en.wikipedia.org/wiki/Hyperbolic_secant_distribution
double	getMaxDensity() This method returns the maximum value of the getDensity function
double	getMean() These methods return the mean
double	getMedian() This method returns the median
double	getMGF(double t) Computes the moment generating function in closed form for a parameter t which lies in the domain of the distribution.
java.lang.String	getOnlineDescription() This method returns an online description of this distribution.
double	getVariance() These methods return the variance
double	secant(double t) Computes the secant function http://en.wikipedia.org/wiki/Trigonometric_function
double	sech(double x) This method defines the hyperbolic-secant function http://en.wikipedia.org/wiki/Hyperbolic_function

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, getMgfDomain, getName, getPGF, getPGFDomain, getQuantile, getSampleMoment, getSD, getSOCRDistributionFunctors, getSOCRDistributions, getType, getVariance, initialize, inverseCDF, logGamma, paramEstimate, perm, sampleMean, sampleVar, setApplet, setDomain, setDomain, setMGFDomain, setMGFDomain, setMGFParameters, setMGFParameters, setMGFParameters, setMGFParameters, setParameters, setPGFDomain, setPGFDomain, setPGFParameters, setPGFParameters, setPGFParameters, setPGFParameters, simulate, update, valueChanged, 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

Field Detail

C

public static final double C

See Also:

Constant Field Values

Constructor Detail

HyperbolicSecantDistribution

public HyperbolicSecantDistribution()

This general constructor creates a new HyperbolicSecant distribution with specified parameter values

Method Detail

getDensity

public double getDensity(double x)

This method defines the getDensity function http://en.wikipedia.org/wiki/Hyperbolic_secant_distribution

Specified by:

getDensity in class Distribution

sech

public double sech(double x)

This method defines the hyperbolic-secant function http://en.wikipedia.org/wiki/Hyperbolic_function

getMaxDensity

public double getMaxDensity()

This method returns the maximum value of the getDensity function

Overrides:

getMaxDensity in class Distribution

getMedian

public double getMedian()

This method returns the median

Overrides:

getMedian in class Distribution

getMean

public double getMean()

These methods return the mean

Overrides:

getMean in class Distribution

getVariance

public double getVariance()

These methods return the variance

Overrides:

getVariance in class Distribution

getCDF

public double getCDF(double x)

This method computes the cumulative distribution function

Overrides:

getCDF in class Distribution

getMGF

public double getMGF(double t)

Computes the moment generating function in closed form for a parameter t which lies in the domain of the distribution.

Overrides:

getMGF in class Distribution

secant

public double secant(double t)

Computes the secant function http://en.wikipedia.org/wiki/Trigonometric_function

getOnlineDescription

public java.lang.String getOnlineDescription()

This method returns an online description of this distribution.

Overrides:

getOnlineDescription in class Distribution