Reference manual - version qle_version
#include <qle/models/defaultlossmodel.hpp>
Inheritance diagram for DefaultLossModel:Protected Attributes | |
| RelinkableHandle< QuantExt::Basket > | basket_ |
Friends | |
| class | QuantExt::Basket |
Statistics | |
| virtual Real | expectedTrancheLoss (const Date &d, Real recoveryRate=Null< Real >()) const |
| virtual Probability | probOverLoss (const Date &d, Real lossFraction) const |
| virtual Real | percentile (const Date &d, Real percentile) const |
| Value at Risk given a default loss percentile. | |
| virtual Real | expectedShortfall (const Date &d, Real percentile) const |
| Expected shortfall given a default loss percentile. | |
| virtual std::vector< Real > | splitVaRLevel (const Date &d, Real loss) const |
| Associated VaR fraction to each counterparty. | |
| virtual std::vector< Real > | splitESFLevel (const Date &d, Real loss) const |
| Associated ESF fraction to each counterparty. | |
| virtual std::map< Real, Probability > | lossDistribution (const Date &) const |
| Full loss distribution. | |
| virtual Real | densityTrancheLoss (const Date &d, Real lossFraction) const |
| Probability density of a given loss fraction of the basket notional. | |
| virtual std::vector< Probability > | probsBeingNthEvent (Size n, const Date &d) const |
| virtual Real | defaultCorrelation (const Date &d, Size iName, Size jName) const |
| Pearsons' default probability correlation. | |
| virtual Probability | probAtLeastNEvents (Size n, const Date &d) const |
| virtual Real | expectedRecovery (const Date &, Size iName, const DefaultProbKey &) const |
| virtual QuantLib::Real | correlation () const |
Default loss model interface definition. Allows communication between the basket and specific algorithms. Intended to hold any kind of portfolio joint loss, latent models, top-down,....
An inconvenience of this design as opposed to the full arguments/results is that when pricing several derivatives instruments on the same basket not all the pricing engines would point to the same loss model; thus when pricing a set of such instruments there might be some switching on the basket loss models, which might require recalculations (of the basket) or not depending on the pricing order.
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protectedvirtual |
Probability of the tranche losing the same or more than the fractional amount given.
The passed lossFraction is a fraction of losses over the tranche notional (not the portfolio).
Reimplemented in GaussianLHPLossModel.
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protectedvirtual |
Probabilities for each of the (remaining) basket elements in the pool to have defaulted by time d and at the same time be the Nth defaulting name to default in the basket. This method is oriented to default order dependent portfolio pricing (e.g. NTDs) The the probabilities ordering in the vector coincides with the pool order.
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protectedvirtual |
Returns the probaility of having a given or larger number of defaults in the basket portfolio at a given time.
Reimplemented in ExtendedConstantLossModel< copulaPolicy >, and ConstantLossModel< copulaPolicy >.
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protectedvirtual |
Expected RR for name conditinal to default by that date.
Reimplemented in ExtendedConstantLossModel< copulaPolicy >, ConstantLossModel< copulaPolicy >, and GaussianLHPLossModel.
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protectedvirtual |
Return single correlation number for one factor models. If not implemented or not applicable, returns a Null<Real>().
Reimplemented in PoolLossModel< CopulaPolicy >.
