Standard Links

These functions are used to enable the use of the corresponding link function between the survival and longitudinal models in a joint model. Note that the exact implementation of the link function is model specific, see vignette("Statistical Specifications", package = "jmpost") for more details.

Usage

linkNone()

linkTTG(prior, model = PromiseLongitudinalModel(), ...)

linkDSLD(prior, model = PromiseLongitudinalModel(), ...)

linkIdentity(prior, model = PromiseLongitudinalModel(), ...)

linkGrowth(prior, model = PromiseLongitudinalModel(), ...)

linkShrinkage(prior, model = PromiseLongitudinalModel(), ...)

Arguments

prior

(Prior) A Prior object.

model

(LongitudinalModel) A LongitudinalModel object.

...

Not used.

Value

A Link or LinkComponent object representing the requested association.

Functions

• linkNone(): No link (fit the survival and longitudinal models independently)

• linkTTG(): Time to growth link

• linkDSLD(): Derivative of the SLD over time link

• linkIdentity(): Current SLD value link

• linkGrowth(): Growth Parameter link

• linkShrinkage(): Shrinkage Parameter link

Examples

linkNone()
#> 
#> No Link
linkDSLD()
#> 
#> LinkComponent with parameter:
#>     link_dsld ~ normal(mu = 0, sigma = 2)
#> 
linkTTG(prior_normal(0, 1), model = LongitudinalGSF())
#> 
#> LinkComponent with parameter:
#>     link_ttg ~ normal(mu = 0, sigma = 1)
#>