QuantLib_ForwardSpreadedTermStructure

Langue: en

Autres versions - même langue

Version: 373286 (fedora - 01/12/10)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

QuantLib::ForwardSpreadedTermStructure -

Term structure with added spread on the instantaneous forward rate.

SYNOPSIS


#include <ql/termstructures/yield/forwardspreadedtermstructure.hpp>

Inherits QuantLib::ForwardRateStructure.

Public Member Functions


ForwardSpreadedTermStructure (const Handle< YieldTermStructure > &, const Handle< Quote > &spread)

YieldTermStructure interface

 


DayCounter dayCounter () const
the day counter used for date/time conversion
Calendar calendar () const
the calendar used for reference and/or option date calculation
Natural settlementDays () const
the settlementDays used for reference date calculation
const Date & referenceDate () const
the date at which discount = 1.0 and/or variance = 0.0
Date maxDate () const
the latest date for which the curve can return values
Time maxTime () const
the latest time for which the curve can return values

Protected Member Functions

ForwardRateStructure implementation

 


Rate forwardImpl (Time t) const
instantaneous forward-rate calculation
Rate zeroYieldImpl (Time t) const

Detailed Description

Term structure with added spread on the instantaneous forward rate.

Note:

This term structure will remain linked to the original structure, i.e., any changes in the latter will be reflected in this structure as well.

Tests

*
the correctness of the returned values is tested by checking them against numerical calculations.
*
observability against changes in the underlying term structure and in the added spread is checked.

Member Function Documentation

Rate zeroYieldImpl (Time) const [protected, virtual]Returns the zero yield rate for the given date calculating it from the instantaneous forward rate $ f(t) $ as [ z(t) = int_0^t f( au) d au ]

Warning

This default implementation uses an highly inefficient and possibly wildly inaccurate numerical integration. Derived classes should override it if a more efficient implementation is available.

Reimplemented from ForwardRateStructure.

Author

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