Access Components of an FRPP Specification

Read or replace the kernel and residual law of an S4 fspec. Legacy S3 specifications are converted before access. Replacement validates the whole specification without executing its callbacks.

Usage

fkernel(object)
fkernel(object) <- value
fresidual(object)
fresidual(object) <- value

Arguments

object

An fspec or a compatible legacy FRPP specification.

value

For fkernel, an hspec without residual callbacks. For fresidual, a law constructed by residual_law.

Value

The requested component. Replacement returns an updated S4 specification.

See also

fspec, residual_law

Examples

m <- fspec(methods::new("hspec", mu = .4, alpha = .1, beta = 1),
  residual_law(c(rate = 1), stats::dexp, stats::pexp, stats::qexp, stats::rexp))
fkernel(m)
#> An object of class "hspec" of 1-dimensional Hawkes process
#> 
#> Slot mu: 
#>      [,1]
#> [1,]  0.4
#> 
#> Slot alpha: 
#>      [,1]
#> [1,]  0.1
#> 
#> Slot beta: 
#>      [,1]
#> [1,]    1
#> 
fresidual(m)$name
#> [1] "custom"
fresidual(m) <- residual_law(c(shape = 2, rate = 2), stats::dgamma,
  stats::pgamma, stats::qgamma, stats::rgamma)
methods::validObject(m)
#> [1] TRUE