QuantLib: a free/open-source library for quantitative finance
fully annotated source code - version 1.34
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Forward Hull-White stochastic process More...
#include <hullwhiteprocess.hpp>
Public Member Functions | |
HullWhiteForwardProcess (const Handle< YieldTermStructure > &h, Real a, Real sigma) | |
Public Member Functions inherited from ForwardMeasureProcess1D | |
virtual void | setForwardMeasureTime (Time) |
Time | getForwardMeasureTime () const |
Public Member Functions inherited from StochasticProcess1D | |
virtual Real | evolve (Time t0, Real x0, Time dt, Real dw) const |
virtual Real | apply (Real x0, Real dx) const |
Public Member Functions inherited from StochasticProcess | |
~StochasticProcess () override=default | |
virtual Size | factors () const |
returns the number of independent factors of the process More... | |
virtual Time | time (const Date &) const |
void | update () override |
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 () |
StochasticProcess1D interface | |
ext::shared_ptr< QuantLib::OrnsteinUhlenbeckProcess > | process_ |
Handle< YieldTermStructure > | h_ |
Real | a_ |
Real | sigma_ |
Real | x0 () const override |
returns the initial value of the state variable More... | |
Real | drift (Time t, Real x) const override |
returns the drift part of the equation, i.e. \( \mu(t, x_t) \) More... | |
Real | diffusion (Time t, Real x) const override |
returns the diffusion part of the equation, i.e. \( \sigma(t, x_t) \) More... | |
Real | expectation (Time t0, Real x0, Time dt) const override |
Real | stdDeviation (Time t0, Real x0, Time dt) const override |
Real | variance (Time t0, Real x0, Time dt) const override |
Real | a () const |
Real | sigma () const |
Real | alpha (Time t) const |
Real | M_T (Real s, Real t, Real T) const |
Real | B (Time t, Time T) const |
Additional Inherited Members | |
Public Types inherited from Observer | |
typedef set_type::iterator | iterator |
Protected Member Functions inherited from ForwardMeasureProcess1D | |
ForwardMeasureProcess1D ()=default | |
ForwardMeasureProcess1D (Time T) | |
ForwardMeasureProcess1D (const ext::shared_ptr< discretization > &) | |
Protected Member Functions inherited from StochasticProcess1D | |
StochasticProcess1D ()=default | |
StochasticProcess1D (ext::shared_ptr< discretization >) | |
Protected Member Functions inherited from StochasticProcess | |
StochasticProcess ()=default | |
StochasticProcess (ext::shared_ptr< discretization >) | |
Protected Attributes inherited from ForwardMeasureProcess1D | |
Time | T_ |
Protected Attributes inherited from StochasticProcess1D | |
ext::shared_ptr< discretization > | discretization_ |
Protected Attributes inherited from StochasticProcess | |
ext::shared_ptr< discretization > | discretization_ |
Forward Hull-White stochastic process
Definition at line 61 of file hullwhiteprocess.hpp.
HullWhiteForwardProcess | ( | const Handle< YieldTermStructure > & | h, |
Real | a, | ||
Real | sigma | ||
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Definition at line 82 of file hullwhiteprocess.cpp.
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overridevirtual |
returns the initial value of the state variable
Implements StochasticProcess1D.
Definition at line 90 of file hullwhiteprocess.cpp.
returns the drift part of the equation, i.e. \( \mu(t, x_t) \)
Implements StochasticProcess1D.
Definition at line 94 of file hullwhiteprocess.cpp.
returns the diffusion part of the equation, i.e. \( \sigma(t, x_t) \)
Implements StochasticProcess1D.
Definition at line 104 of file hullwhiteprocess.cpp.
returns the expectation \( E(x_{t_0 + \Delta t} | x_{t_0} = x_0) \) of the process after a time interval \( \Delta t \) according to the given discretization. This method can be overridden in derived classes which want to hard-code a particular discretization.
Reimplemented from StochasticProcess1D.
Definition at line 108 of file hullwhiteprocess.cpp.
returns the standard deviation \( S(x_{t_0 + \Delta t} | x_{t_0} = x_0) \) of the process after a time interval \( \Delta t \) according to the given discretization. This method can be overridden in derived classes which want to hard-code a particular discretization.
Reimplemented from StochasticProcess1D.
Definition at line 115 of file hullwhiteprocess.cpp.
returns the variance \( V(x_{t_0 + \Delta t} | x_{t_0} = x_0) \) of the process after a time interval \( \Delta t \) according to the given discretization. This method can be overridden in derived classes which want to hard-code a particular discretization.
Reimplemented from StochasticProcess1D.
Definition at line 120 of file hullwhiteprocess.cpp.
Real a | ( | ) | const |
Definition at line 154 of file hullwhiteprocess.cpp.
Real sigma | ( | ) | const |
Definition at line 158 of file hullwhiteprocess.cpp.
Definition at line 124 of file hullwhiteprocess.cpp.
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protected |
Definition at line 83 of file hullwhiteprocess.hpp.
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protected |
Definition at line 84 of file hullwhiteprocess.hpp.
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protected |
Definition at line 85 of file hullwhiteprocess.hpp.
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Definition at line 85 of file hullwhiteprocess.hpp.