QuantLib
: a free/open-source library for quantitative finance
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ql
pricingengines
vanilla
exponentialfittinghestonengine.hpp
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/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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Copyright (C) 2020 Klaus Spanderen
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This file is part of QuantLib, a free-software/open-source library
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for financial quantitative analysts and developers - http://quantlib.org/
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QuantLib is free software: you can redistribute it and/or modify it
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under the terms of the QuantLib license. You should have received a
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copy of the license along with this program; if not, please email
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<quantlib-dev@lists.sf.net>. The license is also available online at
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<http://quantlib.org/license.shtml>.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the license for more details.
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*/
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#ifndef quantlib_exponential_fitting_heston_engine_hpp
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#define quantlib_exponential_fitting_heston_engine_hpp
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#include <ql/pricingengines/genericmodelengine.hpp>
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#include <ql/models/equity/hestonmodel.hpp>
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#include <ql/instruments/vanillaoption.hpp>
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#include <vector>
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namespace
QuantLib
{
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class
AnalyticHestonEngine;
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// exponentially fitted Gauss-Laguerre quadrature
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class
ExponentialFittingHestonEngine
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:
public
GenericModelEngine
<HestonModel,
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VanillaOption::arguments,
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VanillaOption::results> {
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public
:
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enum
ControlVariate
{
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// Gatheral form with Andersen-Piterbarg control variate
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AndersenPiterbarg
,
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// same as AndersenPiterbarg, but a slightly better control variate
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AndersenPiterbargOptCV
,
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// Gatheral form with asymptotic expansion of the characteristic function as control variate
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AsymptoticChF
,
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// auto selection of best control variate algorithm from above
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OptimalCV
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};
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explicit
ExponentialFittingHestonEngine
(
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const
ext::shared_ptr<HestonModel>& model,
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ControlVariate
cv =
OptimalCV
,
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Real
scaling =
Null<Real>
());
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void
calculate
()
const override
;
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private
:
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const
ControlVariate
cv_
;
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const
Real
scaling_
;
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const
ext::shared_ptr<AnalyticHestonEngine>
analyticEngine_
;
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static
std::vector<Real>
moneyness_
;
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};
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}
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#endif
QuantLib::ExponentialFittingHestonEngine
analytic Heston-model engine based on
Definition:
exponentialfittinghestonengine.hpp:52
QuantLib::ExponentialFittingHestonEngine::scaling_
const Real scaling_
Definition:
exponentialfittinghestonengine.hpp:74
QuantLib::ExponentialFittingHestonEngine::analyticEngine_
const ext::shared_ptr< AnalyticHestonEngine > analyticEngine_
Definition:
exponentialfittinghestonengine.hpp:75
QuantLib::ExponentialFittingHestonEngine::cv_
const ControlVariate cv_
Definition:
exponentialfittinghestonengine.hpp:73
QuantLib::ExponentialFittingHestonEngine::moneyness_
static std::vector< Real > moneyness_
Definition:
exponentialfittinghestonengine.hpp:77
QuantLib::ExponentialFittingHestonEngine::calculate
void calculate() const override
Definition:
exponentialfittinghestonengine.cpp:205
QuantLib::ExponentialFittingHestonEngine::ControlVariate
ControlVariate
Definition:
exponentialfittinghestonengine.hpp:54
QuantLib::ExponentialFittingHestonEngine::OptimalCV
@ OptimalCV
Definition:
exponentialfittinghestonengine.hpp:62
QuantLib::ExponentialFittingHestonEngine::AndersenPiterbarg
@ AndersenPiterbarg
Definition:
exponentialfittinghestonengine.hpp:56
QuantLib::ExponentialFittingHestonEngine::AsymptoticChF
@ AsymptoticChF
Definition:
exponentialfittinghestonengine.hpp:60
QuantLib::ExponentialFittingHestonEngine::AndersenPiterbargOptCV
@ AndersenPiterbargOptCV
Definition:
exponentialfittinghestonengine.hpp:58
QuantLib::GenericModelEngine
Base class for some pricing engine on a particular model.
Definition:
genericmodelengine.hpp:40
QuantLib::Null
template class providing a null value for a given type.
Definition:
null.hpp:76
QuantLib::Real
QL_REAL Real
real number
Definition:
types.hpp:50
QuantLib
Definition:
any.hpp:35
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