Damp-class {demest} | R Documentation

## S4 classes to specify damping terms in DLM priors.

### Description

Priors specified using `DLM` can include damping terms. The coefficient can be supplied and treated as known, in which case an object of class `DampKnown` is used. Alternatively, the coefficient can be estimated from the data, using a beta prior, in which case an object of class `DampUnknown` is used. `Damp` is a virtual superclass for `DampKnown` and `DampUnknown`.

### Slots

`phi`

  Coefficient, which must be between 0 and 1.

`minPhi`

  Minimum value for coefficient.

`maxPhi`

  Maximum value for coefficient.

`shape1Phi`

  First 'sample size' parameter in beta prior for coefficient.

`shape2Phi`

  Second 'sample size' parameter in beta prior for coefficient.

### Warning

In normal usage, it should not be necessary to access, or even know about, the slots of a `Damp` object. The slots are not part of the API of the package, and may change in future.

### See Also

Objects of class `Damp` are created by a call to function `Damp`.

[Package demest version 0.0.0.3.1 Index]