mlr_tasks_breast_cancer function

Wisconsin Breast Cancer Classification Task

A classification task for the mlbench::BreastCancer data set.

• Column "Id" has been removed.
• Column names have been converted to snake_case.
• Positive class is set to "malignant".
• 16 incomplete cases have been removed from the data set.
• All factor features have been converted to ordered factors.

Format

R6::R6Class inheriting from TaskClassif .

Dictionary

This Task can be instantiated via the dictionary mlr_tasks or with the associated sugar function tsk():

mlr_tasks$get("breast_cancer")
tsk("breast_cancer")

Meta Information

• Task type: classif
• Dimensions: 683x10
• Properties: twoclass
• Has Missings: FALSE
• Target: class
• Features: bare_nuclei , bl_cromatin , cell_shape , cell_size , cl_thickness , epith_c_size , marg_adhesion , mitoses , normal_nucleoli

See Also

• Chapter in the mlr3book: https://mlr3book.mlr-org.com/chapters/chapter2/data_and_basic_modeling.html

• Package list("mlr3data") for more toy tasks.

• Package list("mlr3oml") for downloading tasks from https://www.openml.org.

• Package list("mlr3viz") for some generic visualizations.

• Dictionary of Tasks : mlr_tasks

• as.data.table(mlr_tasks) for a table of available Tasks in the running session (depending on the loaded packages).

• list("mlr3fselect") and list("mlr3filters") for feature selection and feature filtering.

• Extension packages for additional task types:

  • Unsupervised clustering: list("mlr3cluster")
  • Probabilistic supervised regression and survival analysis: https://mlr3proba.mlr-org.com/.

Other Task: Task, TaskClassif, TaskRegr, TaskSupervised, TaskUnsupervised, california_housing, mlr_tasks, mlr_tasks_german_credit, mlr_tasks_iris, mlr_tasks_mtcars, mlr_tasks_penguins, mlr_tasks_pima, mlr_tasks_sonar, mlr_tasks_spam, mlr_tasks_wine, mlr_tasks_zoo