Supervised Task
This is the abstract base class for task objects like TaskClassif and TaskRegr. It extends Task with methods to handle a target columns. Supervised tasks for probabilistic regression (including survival analysis) can be found in mlr3proba.
mlr3::Task -> TaskSupervised
new()
Creates a new instance of this R6 class.
TaskSupervised$new(id, task_type, backend, target, extra_args = list())
id(character(1))
Identifier for the new instance.
task_type(character(1))
Type of task, e.g. "regr" or "classif".
Must be an element of mlr_reflections$task_types$type.
backend(DataBackend)
Either a DataBackend, or any object which is convertible to a DataBackend with as_data_backend().
E.g., a data.frame() will be converted to a DataBackendDataTable.
target(character(1))
Name of the target column.
extra_args(named list())
Named list of constructor arguments, required for converting task types
via convert_task().
truth()
True response for specified row_ids. Format depends on the task type.
Defaults to all rows with role "use".
TaskSupervised$truth(rows = NULL)
rowsinteger()
Row indices.
clone()
The objects of this class are cloneable with this method.
TaskSupervised$clone(deep = FALSE)
deepWhether to make a deep clone.
TaskSupervised$new("penguins", task_type = "classif", backend = palmerpenguins::penguins,
target = "species")Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.