com.bayesserver.analysis

Class SensitivityFunctionOneWay

java.lang.Object

com.bayesserver.analysis.SensitivityFunctionOneWay

public final class SensitivityFunctionOneWay
extends Object

Represents the result on a one-way sensitivity to parameters analysis. The sensitivity function = P(h|e)(t) where h is the hypothesis state, e is the evidence, and t is the parameter being analyzed.

Method Summary

Modifier and Type	Method and Description
double	evaluate(double t) Evaluates the Sensitivity function P(h|e)(t) = (alpha * t + beta) / (gamma * t + delta)
double	evaluateDeriv(double t) Evaluates the partial derivative of the Sensitivity function with respect to t = ((alpha*delta)-(beta*gamma))/((gamma*t + delta)^2)
double	getAlpha() Gets Alpha from the sensitivity function.
double	getBeta() Gets Beta from the sensitivity function.
double	getDelta() Gets Delta from the sensitivity function.
double	getGamma() Gets Gamma from the sensitivity function.
double	getParameterValue() Gets the original value of the parameter being analyzed.
double	getProbabilityHypothesisGivenEvidence() Gets P(h|e).
double	getSensitivityValue() Gets the sensitivity value which is the derivative of the sensitivity function evaluated at t.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

evaluate

public double evaluate(double t)

Evaluates the Sensitivity function P(h|e)(t) = (alpha * t + beta) / (gamma * t + delta)

Parameters:

t - The parameter value at which to evaluate the function.

Returns:

The value of the sensitivity function P(h|e)(t).

evaluateDeriv

public double evaluateDeriv(double t)

Evaluates the partial derivative of the Sensitivity function with respect to t = ((alpha*delta)-(beta*gamma))/((gamma*t + delta)^2)

Parameters:

t - The parameter value at which to evaluate the derivative.

Returns:

The value of the derivative of the sensitivity function dP(h|e)/dt.

getParameterValue

public double getParameterValue()

Gets the original value of the parameter being analyzed.

getProbabilityHypothesisGivenEvidence

public double getProbabilityHypothesisGivenEvidence()

Gets P(h|e).

getSensitivityValue

public double getSensitivityValue()

Gets the sensitivity value which is the derivative of the sensitivity function evaluated at t.

getAlpha

public double getAlpha()

Gets Alpha from the sensitivity function.

getBeta

public double getBeta()

Gets Beta from the sensitivity function.

getGamma

public double getGamma()

Gets Gamma from the sensitivity function.

getDelta

public double getDelta()

Gets Delta from the sensitivity function.