QuantLib: a free/open-source library for quantitative finance
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lmvolmodel.hpp
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1/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2
3/*
4 Copyright (C) 2005, 2006 Klaus Spanderen
5
6 This file is part of QuantLib, a free-software/open-source library
7 for financial quantitative analysts and developers - http://quantlib.org/
8
9 QuantLib is free software: you can redistribute it and/or modify it
10 under the terms of the QuantLib license. You should have received a
11 copy of the license along with this program; if not, please email
12 <quantlib-dev@lists.sf.net>. The license is also available online at
13 <http://quantlib.org/license.shtml>.
14
15 This program is distributed in the hope that it will be useful, but WITHOUT
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17 FOR A PARTICULAR PURPOSE. See the license for more details.
18*/
19
20/*! \file lmvolmodel.hpp
21 \brief volatility model for libor market models
22*/
23
24#ifndef quantlib_libor_market_volatility_model_hpp
25#define quantlib_libor_market_volatility_model_hpp
26
28#include <ql/utilities/null.hpp>
29
30namespace QuantLib {
31
32 //! caplet volatility model
34 public:
35 LmVolatilityModel(Size size, Size nArguments);
36 virtual ~LmVolatilityModel() = default;
37
38 Size size() const;
39
40 std::vector<Parameter> & params();
41 void setParams(const std::vector<Parameter> & arguments);
42
43 virtual Array volatility(Time t, const Array& x = Null<Array>()) const = 0;
44 virtual Volatility volatility(Size i, Time t, const Array& x = Null<Array>()) const;
45 virtual Real integratedVariance(Size i, Size j, Time u,
46 const Array& x = Null<Array>()) const;
47
48 protected:
49 const Size size_;
50 std::vector<Parameter> arguments_;
51
52 private:
53 virtual void generateArguments() = 0;
54 };
55
56}
57
58
59#endif
60
1-D array used in linear algebra.
Definition: array.hpp:52
caplet volatility model
Definition: lmvolmodel.hpp:33
virtual ~LmVolatilityModel()=default
void setParams(const std::vector< Parameter > &arguments)
Definition: lmvolmodel.cpp:48
virtual Array volatility(Time t, const Array &x=Null< Array >()) const =0
std::vector< Parameter > & params()
Definition: lmvolmodel.cpp:44
virtual Real integratedVariance(Size i, Size j, Time u, const Array &x=Null< Array >()) const
Definition: lmvolmodel.cpp:39
virtual void generateArguments()=0
std::vector< Parameter > arguments_
Definition: lmvolmodel.hpp:50
template class providing a null value for a given type.
Definition: null.hpp:76
const DefaultType & t
Real Time
continuous quantity with 1-year units
Definition: types.hpp:62
QL_REAL Real
real number
Definition: types.hpp:50
Real Volatility
volatility
Definition: types.hpp:78
std::size_t Size
size of a container
Definition: types.hpp:58
Definition: any.hpp:35
null values
Model parameter classes.