QuantLib: a free/open-source library for quantitative finance
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defaultdensitystructure.hpp
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1/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2
3/*
4 Copyright (C) 2008 Chris Kenyon
5 Copyright (C) 2008 Roland Lichters
6 Copyright (C) 2008 StatPro Italia srl
7
8 This file is part of QuantLib, a free-software/open-source library
9 for financial quantitative analysts and developers - http://quantlib.org/
10
11 QuantLib is free software: you can redistribute it and/or modify it
12 under the terms of the QuantLib license. You should have received a
13 copy of the license along with this program; if not, please email
14 <quantlib-dev@lists.sf.net>. The license is also available online at
15 <http://quantlib.org/license.shtml>.
16
17 This program is distributed in the hope that it will be useful, but WITHOUT
18 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
19 FOR A PARTICULAR PURPOSE. See the license for more details.
20*/
21
22/*! \file defaultdensitystructure.hpp
23 \brief default-density term structure
24*/
25
26#ifndef quantlib_default_density_structure_hpp
27#define quantlib_default_density_structure_hpp
28
30
31namespace QuantLib {
32
33 //! Default-density term structure
34 /*! This abstract class acts as an adapter to
35 DefaultProbabilityTermStructure allowing the programmer to implement
36 only the <tt>defaultDensityImpl(Time)</tt> method in derived classes.
37
38 Survival/default probabilities and hazard rates are calculated
39 from default densities.
40
41 \ingroup defaultprobabilitytermstructures
42 */
44 public:
45 /*! \name Constructors
46 See the TermStructure documentation for issues regarding
47 constructors.
48 */
49 //@{
52 const std::vector<Handle<Quote> >& jumps = {},
53 const std::vector<Date>& jumpDates = {});
55 const Date& referenceDate,
56 const Calendar& cal = Calendar(),
58 const std::vector<Handle<Quote> >& jumps = {},
59 const std::vector<Date>& jumpDates = {});
62 const Calendar& cal,
64 const std::vector<Handle<Quote> >& jumps = {},
65 const std::vector<Date>& jumpDates = {});
66 //@}
67 protected:
68 //! \name DefaultProbabilityTermStructure implementation
69 //@{
70 //! survival probability calculation
71 /*! implemented in terms of the default density \f$ p(t) \f$ as
72 \f[
73 S(t) = 1 - \int_0^t p(\tau) d\tau.
74 \f]
75
76 \warning This default implementation uses numerical integration,
77 which might be inefficient and inaccurate.
78 Derived classes should override it if a more efficient
79 implementation is available.
80 */
82 //@}
83 };
84
85}
86
87#endif
calendar class
Definition: calendar.hpp:61
Concrete date class.
Definition: date.hpp:125
day counter class
Definition: daycounter.hpp:44
Default-density term structure.
Probability survivalProbabilityImpl(Time) const override
survival probability calculation
Default probability term structure.
const std::vector< Date > & jumpDates() const
Shared handle to an observable.
Definition: handle.hpp:41
virtual Natural settlementDays() const
the settlementDays used for reference date calculation
virtual const Date & referenceDate() const
the date at which discount = 1.0 and/or variance = 0.0
virtual DayCounter dayCounter() const
the day counter used for date/time conversion
default-probability term structure
Real Time
continuous quantity with 1-year units
Definition: types.hpp:62
unsigned QL_INTEGER Natural
positive integer
Definition: types.hpp:43
Real Probability
probability
Definition: types.hpp:82
Definition: any.hpp:35