Specify the growth model for Rceattle

Specify the growth model for Rceattle

Usage

build_growth(fun = "empirical", linkages = NULL)

Arguments

fun

Growth function. Either a string (GROWTH_FUNS: "empirical" (default), "vonBertalanffy", "Richards") or the equivalent integer code (0, 1, 2). The canonical string form is stored on the returned object.

linkages

Optional named list of linkage_spec() objects keyed by parameter name (must be one of GROWTH_LINKAGE_PARAMS). Each spec describes how that growth parameter depends on environmental covariates and on stratifying factors (species, sex). The parameter name on each spec is filled in from the list key. Materialization into the global linkage table happens inside fit_mod() once data_list$env_data is in scope.

Value

A list of switches defining the growth model.

Examples

if (FALSE) { # \dontrun{
# Sex-specific von Bertalanffy with temperature on K, by species + sex
build_growth(
  fun = "vonBertalanffy",   # or fun = 1
  linkages = list(
    log_K = linkage_spec(
      formula = ~ temp,
      by      = ~ species + sex,
      priors  = list(temp = normal(0, 1))
    )
  )
)
} # }