net.finmath.montecarlo.interestrate.models.covariance.TermStructureFactorLoadingsModelParametric Maven / Gradle / Ivy

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finmath lib is a Mathematical Finance Library in Java. It provides algorithms and methodologies related to mathematical finance.

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/*
 * (c) Copyright Christian P. Fries, Germany. Contact: [email protected].
 *
 * Created on 24.12.2016
 */
package net.finmath.montecarlo.interestrate.models.covariance;

/**
 * A base class and interface description for the instantaneous covariance of
 * an forward rate interest rate model.
 *
 * @author Christian Fries
 * @version 1.0
 */
public interface TermStructureFactorLoadingsModelParametric extends TermStructureFactorLoadingsModel {
	/**
	 * Get the parameters of determining this parametric
	 * covariance model. The parameters are usually free parameters
	 * which may be used in calibration.
	 *
	 * @return Parameter vector.
	 */
	double[]	getParameter();

	/**
	 * Return an instance of this model using a new set of parameters.
	 * Note: To improve performance it is admissible to return the same instance of the object given that the parameters have not changed. Models should be immutable.
	 *
	 * @param parameters The new set of parameters.
	 * @return An instance of AbstractLIBORCovarianceModelParametric with modified parameters.
	 */
	TermStructureCovarianceModelParametric getCloneWithModifiedParameters(double[] parameters);
}