QuantLib: a free/open-source library for quantitative finance
fully annotated source code - version 1.34
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Single-factor affine base class. More...
#include <onefactormodel.hpp>
Public Member Functions | |
OneFactorAffineModel (Size nArguments) | |
Real | discountBond (Time now, Time maturity, Array factors) const override |
Real | discountBond (Time now, Time maturity, Rate rate) const |
DiscountFactor | discount (Time t) const override |
Implied discount curve. More... | |
Public Member Functions inherited from OneFactorModel | |
OneFactorModel (Size nArguments) | |
~OneFactorModel () override=default | |
virtual ext::shared_ptr< ShortRateDynamics > | dynamics () const =0 |
returns the short-rate dynamics More... | |
ext::shared_ptr< Lattice > | tree (const TimeGrid &grid) const override |
Return by default a trinomial recombining tree. More... | |
Public Member Functions inherited from ShortRateModel | |
ShortRateModel (Size nArguments) | |
virtual ext::shared_ptr< Lattice > | tree (const TimeGrid &) const =0 |
Public Member Functions inherited from CalibratedModel | |
CalibratedModel (Size nArguments) | |
void | update () override |
virtual void | calibrate (const std::vector< ext::shared_ptr< CalibrationHelper > > &, OptimizationMethod &method, const EndCriteria &endCriteria, const Constraint &constraint=Constraint(), const std::vector< Real > &weights=std::vector< Real >(), const std::vector< bool > &fixParameters=std::vector< bool >()) |
Calibrate to a set of market instruments (usually caps/swaptions) More... | |
Real | value (const Array ¶ms, const std::vector< ext::shared_ptr< CalibrationHelper > > &) |
const ext::shared_ptr< Constraint > & | constraint () const |
EndCriteria::Type | endCriteria () const |
Returns end criteria result. More... | |
const Array & | problemValues () const |
Returns the problem values. More... | |
Array | params () const |
Returns array of arguments on which calibration is done. More... | |
virtual void | setParams (const Array ¶ms) |
Integer | functionEvaluation () const |
Public Member Functions inherited from Observer | |
Observer ()=default | |
Observer (const Observer &) | |
Observer & | operator= (const Observer &) |
virtual | ~Observer () |
std::pair< iterator, bool > | registerWith (const ext::shared_ptr< Observable > &) |
void | registerWithObservables (const ext::shared_ptr< Observer > &) |
Size | unregisterWith (const ext::shared_ptr< Observable > &) |
void | unregisterWithAll () |
virtual void | update ()=0 |
virtual void | deepUpdate () |
Public Member Functions inherited from Observable | |
Observable () | |
Observable (const Observable &) | |
Observable & | operator= (const Observable &) |
Observable (Observable &&)=delete | |
Observable & | operator= (Observable &&)=delete |
virtual | ~Observable ()=default |
void | notifyObservers () |
Public Member Functions inherited from AffineModel | |
virtual DiscountFactor | discount (Time t) const =0 |
Implied discount curve. More... | |
virtual Real | discountBond (Time now, Time maturity, Array factors) const =0 |
virtual Real | discountBondOption (Option::Type type, Real strike, Time maturity, Time bondMaturity) const =0 |
virtual Real | discountBondOption (Option::Type type, Real strike, Time maturity, Time bondStart, Time bondMaturity) const |
Protected Member Functions | |
virtual Real | A (Time t, Time T) const =0 |
virtual Real | B (Time t, Time T) const =0 |
Protected Member Functions inherited from CalibratedModel | |
virtual void | generateArguments () |
Additional Inherited Members | |
Public Types inherited from Observer | |
typedef set_type::iterator | iterator |
Protected Attributes inherited from CalibratedModel | |
std::vector< Parameter > | arguments_ |
ext::shared_ptr< Constraint > | constraint_ |
EndCriteria::Type | shortRateEndCriteria_ = EndCriteria::None |
Array | problemValues_ |
Integer | functionEvaluation_ |
Single-factor affine base class.
Single-factor models with an analytical formula for discount bonds should inherit from this class. They must then implement the functions \( A(t,T) \) and \( B(t,T) \) such that
\[ P(t, T, r_t) = A(t,T)e^{ -B(t,T) r_t}. \]
Definition at line 126 of file onefactormodel.hpp.
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explicit |
Definition at line 129 of file onefactormodel.hpp.
Implements AffineModel.
Definition at line 132 of file onefactormodel.hpp.
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overridevirtual |
Implied discount curve.
Implements AffineModel.
Definition at line 97 of file onefactormodel.cpp.
Implemented in GeneralizedHullWhite, CoxIngersollRoss, ExtendedCoxIngersollRoss, HullWhite, and Vasicek.
Implemented in GeneralizedHullWhite, CoxIngersollRoss, and Vasicek.