QuantLib: a free/open-source library for quantitative finance
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riskneutraldensitycalculator.hpp
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1/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2
3/*
4 Copyright (C) 2015 Johannes Göttker-Schnetmann
5 Copyright (C) 2015 Klaus Spanderen
6
7 This file is part of QuantLib, a free-software/open-source library
8 for financial quantitative analysts and developers - http://quantlib.org/
9
10 QuantLib is free software: you can redistribute it and/or modify it
11 under the terms of the QuantLib license. You should have received a
12 copy of the license along with this program; if not, please email
13 <quantlib-dev@lists.sf.net>. The license is also available online at
14 <http://quantlib.org/license.shtml>.
15
16 This program is distributed in the hope that it will be useful, but WITHOUT
17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
18 FOR A PARTICULAR PURPOSE. See the license for more details.
19*/
20
21/*! \file riskneutraldensitycalculator.hpp
22 \brief interface for a single asset risk neutral terminal density calculation
23*/
24
25#ifndef quantlib_risk_neutral_density_calculator_hpp
26#define quantlib_risk_neutral_density_calculator_hpp
27
28#include <ql/types.hpp>
29
30namespace QuantLib {
32 public:
33 virtual Real pdf(Real x, Time t) const = 0;
34 virtual Real cdf(Real x, Time t) const = 0;
35 virtual Real invcdf(Real p, Time t) const = 0;
36
37 virtual ~RiskNeutralDensityCalculator() = default;
38
39 protected:
41 public:
43 Real guess, Real accuracy, Size maxEvaluations,
44 Real stepSize=0.01);
45
46 Real inverseCDF(Real p, Time t) const;
47 private:
49 const Real guess_;
53 };
54 };
55}
56
57#endif
virtual ~RiskNeutralDensityCalculator()=default
virtual Real pdf(Real x, Time t) const =0
virtual Real cdf(Real x, Time t) const =0
virtual Real invcdf(Real p, Time t) const =0
const DefaultType & t
Real Time
continuous quantity with 1-year units
Definition: types.hpp:62
QL_REAL Real
real number
Definition: types.hpp:50
std::size_t Size
size of a container
Definition: types.hpp:58
Definition: any.hpp:35
Custom types.