default_measures: Get the Default Measure

In mlr3: Machine Learning in R - Next Generation

Get the Default Measure

Description

Gets the default measures using the information in mlr_reflections$default_measures:

• "classif.ce" for classification ("classif").

• "regr.mse" for regression ("regr").

• Add-on package may register additional default measures for their own task types.

Usage

default_measures(task_type)

Arguments

task_type

(character(1)) Get the default measure for the task type task_type, e.g., "classif" or "regr". If task_type is NULL, an empty list is returned.

Value

list of Measure.

Examples

default_measures("classif")
default_measures("regr")

mlr3 documentation built on Sept. 14, 2025, 1:08 a.m.