CapPseudoDerivative Class Reference

#include <ql/models/marketmodels/pathwisegreeks/swaptionpseudojacobian.hpp>

List of all members.

Public Member Functions

 CapPseudoDerivative (boost::shared_ptr< MarketModel > inputModel, Real strike, Size startIndex, Size endIndex, Real firstDF)
const Matrix & volatilityDerivative (Size i) const
const Matrix & priceDerivative (Size i) const
Real impliedVolatility () const

Detailed Description

In order to compute market vegas, we need a class that gives the derivative of a cap implied vol against changes in pseudo-root elements. This is that class.

The operation is non-trivial because the cap implied vol has a complicated relationship with the caplet implied vols.

This is tested in the pathwise vegas routine in MarketModels.cpp