R/zzz.R

In mlr3learners/mlr3learners.survival: Learners from the {survival} package for 'mlr3'

#' @import data.table
#' @import paradox
#' @import mlr3
#' @import mlr3misc
#' @import mlr3proba
#' @import survival
#' @import distr6
#' @importFrom R6 R6Class
"_PACKAGE"

# nocov start
register_mlr3 = function(libname, pkgname) {
  # get mlr_learners dictionary from the mlr3 namespace
  x = utils::getFromNamespace("mlr_learners", ns = "mlr3")

  # add the learner to the dictionary
  x$add("surv.nelson", LearnerSurvNelson)
  x$add("surv.parametric", LearnerSurvParametric)
}

.onLoad = function(libname, pkgname) {# nolint
  register_mlr3()
  setHook(packageEvent("mlr3", "onLoad"), function(...) register_mlr3(),
    action = "append")
}

.onUnload = function(libpath) {# nolint
  event = packageEvent("mlr3", "onLoad")
  hooks = getHook(event)
  pkgname = vapply(hooks, function(x) environment(x)$pkgname, NA_character_)
  setHook(event, hooks[pkgname != "mlr3learners.survival"],
    action = "replace")
}
# nocov end