#' @title Accuracy Classification Measure
#'
#' @usage NULL
#' @aliases mlr_measures_classif.acc
#' @format [R6::R6Class()] inheriting from [MeasureClassif].
#' @include MeasureClassif.R
#'
#' @section Construction:
#' ```
#' MeasureClassifACC$new()
#' mlr_measures$get("classif.acc")
#' msr("classif.acc")
#' ```
#'
#' @description
#' Calls [Metrics::accuracy()].
#'
#' @template seealso_measure
#' @export
MeasureClassifACC = R6Class("MeasureClassifACC",
inherit = MeasureClassif,
public = list(
initialize = function() {
super$initialize(
id = "classif.acc",
range = 0:1,
minimize = FALSE,
packages = "Metrics"
)
},
score_internal = function(prediction, ...) {
Metrics::accuracy(actual = prediction$truth, predicted = prediction$response)
}
)
)
#' @include mlr_measures.R
mlr_measures$add("classif.acc", MeasureClassifACC)
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