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#' @title Create control object for hyperparameter tuning with random search.
#'
#' @description
#' Random search. All kinds of parameter types can be handled.
#'
#' @inherit TuneControl
#' @param budget (`integer(1)`)\cr
#' Maximum budget for tuning. This value restricts the number of function
#' evaluations. The `budget` equals the number of iterations (`maxit`) performed by
#' the random search algorithm.
#' @param maxit (`integer(1)` | NULL)\cr
#' Number of iterations for random search.
#' Default is 100.
#' @return ([TuneControlRandom])
#' @aliases TuneControlRandom
#' @family tune
#' @export
makeTuneControlRandom = function(same.resampling.instance = TRUE, maxit = NULL, tune.threshold = FALSE,
tune.threshold.args = list(), log.fun = "default", final.dw.perc = NULL, budget = NULL) {
# if we dont get neither budget nor maxit, set it to default, otherwise take one of the 2
if (is.null(budget) && is.null(maxit)) {
budget = maxit = 100L
}
if (!is.null(maxit)) {
maxit = asCount(maxit)
}
if (!is.null(budget)) {
budget = asCount(budget)
}
maxit = coalesce(maxit, budget)
budget = coalesce(budget, maxit)
if (budget != maxit) {
stopf("The parameters budget (%i) and maxit (%i) differ.", budget, maxit)
}
makeTuneControl(same.resampling.instance = same.resampling.instance,
maxit = maxit, start = NULL, tune.threshold = tune.threshold, tune.threshold.args = tune.threshold.args, final.dw.perc = final.dw.perc,
log.fun = log.fun, budget = budget, cl = "TuneControlRandom")
}
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