net.finmath.montecarlo.process

Interface ProcessInterface

All Known Subinterfaces:

AbstractProcessInterface

All Known Implementing Classes:

AbstractProcess, LinearInterpolatedTimeDiscreteProcess, ProcessEulerScheme

public interface ProcessInterface

The interface for a stochastic process X.

Author:

Christian Fries

Method Summary

Modifier and Type	Method and Description
ProcessInterface	clone() Create and return a clone of this process.
RandomVariableInterface	getMonteCarloWeights(int timeIndex) This method returns the weights of a weighted Monte Carlo method (the probability density).
int	getNumberOfComponents()
RandomVariableInterface	getProcessValue(int timeIndex, int component) This method returns the realization of a component of the process for a given time index.
double	getTime(int timeIndex)
TimeDiscretizationInterface	getTimeDiscretization()
int	getTimeIndex(double time) Returns the time index for a given simulation time.

Method Detail

getProcessValue

RandomVariableInterface getProcessValue(int timeIndex,
                                        int component)
                                 throws CalculationException

This method returns the realization of a component of the process for a given time index.

Parameters:

timeIndex - Time index at which the process should be observed

component - Component index of the process

Returns:

The process component realizations (given as RandomVariable)

Throws:

CalculationException - Thrown if the valuation fails, specific cause may be available via the cause() method.

getMonteCarloWeights

RandomVariableInterface getMonteCarloWeights(int timeIndex)
                                      throws CalculationException

This method returns the weights of a weighted Monte Carlo method (the probability density).

Parameters:

timeIndex - Time index at which the process should be observed

Returns:

A vector of positive weights which sums up to one

Throws:

CalculationException - Thrown if the valuation fails, specific cause may be available via the cause() method.

getNumberOfComponents

int getNumberOfComponents()

Returns:

Returns the numberOfComponents.

getTimeDiscretization

TimeDiscretizationInterface getTimeDiscretization()

Returns:

Returns the timeDiscretization.

getTime

double getTime(int timeIndex)

Parameters:

timeIndex - Time index.

Returns:

Returns the time for a given time index.

getTimeIndex

int getTimeIndex(double time)

Returns the time index for a given simulation time.

Parameters:

time - The given simulation time.

Returns:

Returns the time index for a given time

clone

ProcessInterface clone()

Create and return a clone of this process. The clone is not tied to any model, but has the same process specification, that is, if the model is the same, it would generate the same paths.

Returns:

Clone of the process