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#' @title Density Task Generator for Package 'distr6'
#'
#' @name mlr_task_generators_simdens
#'
#' @description
#' A [mlr3::TaskGenerator] calling [distr6::distrSimulate()].
#' See [distr6::distrSimulate()] for an explanation of the hyperparameters.
#'
#' @templateVar id simdens
#' @template section_dictionary_task_generator
#'
#' @template seealso_task_generator
#' @export
#' @examples
#' generator = mlr3::mlr_task_generators$get("simdens")
#' task = generator$generate(20)
#' task$head()
TaskGeneratorSimdens = R6::R6Class("TaskGeneratorSimdens",
inherit = TaskGenerator,
public = list(
#' @description Creates a new instance of this [R6][R6::R6Class] class.
initialize = function() {
param_set = ps(
distribution = p_fct(default = "Normal", levels = distr6::listDistributions(T)),
pars = p_uty()
)
super$initialize(
id = "simdens",
task_type = "dens",
packages = "distr6",
param_set = param_set,
label = "Density Generator for package 'distr'",
man = "mlr3::mlr_task_generators_simdens"
)
}
),
private = list(
.generate = function(n) {
data = invoke(distr6::distrSimulate, n = n, .args = self$param_set$values)
TaskDens$new(sprintf("%s_%i", self$id, n), data)
}
)
)
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