# mlr3extralearners Package website: [release](https://mlr3extralearners.mlr-org.com/) \| [dev](https://mlr3extralearners.mlr-org.com/dev/) Extra Learners for **[mlr3](https://github.com/mlr-org/mlr3/)**. ## What is mlr3extralearners? `mlr3extralearners` contains all learners from mlr3 that are not in `mlr3learners` or the core packages. An overview of all learners within the `mlr3verse` can be found [here](https://mlr-org.com/learners.html). `mlr3extralearners` lives on GitHub and will not be on CRAN. You can install the package as follows: ``` r # latest GitHub release pak::pak("mlr-org/mlr3extralearners@*release") # development version pak::pak("mlr-org/mlr3extralearners") ``` Alternatively, you can add the following to your .Rprofile, which allows you to install `mlr3extralearners` via [`install.packages()`](https://rdrr.io/r/utils/install.packages.html). ``` r # .Rprofile options(repos = c( mlrorg = "https://mlr-org.r-universe.dev", CRAN = "https://cloud.r-project.org/" )) ``` ## Quick Start The package includes functionality for detecting if you have the required packages installed to use a learner, and ships with the function `install_learner` which can install all required learner dependencies. ``` r library(mlr3extralearners) lrn("regr.gbm") #> Warning: Package 'gbm' required but not installed for Learner 'regr.gbm' #> : Gradient Boosting #> * Model: - #> * Parameters: keep.data=FALSE, n.cores=1 #> * Packages: mlr3, mlr3extralearners, gbm #> * Predict Types: [response] #> * Feature Types: integer, numeric, factor, ordered #> * Properties: importance, missings, weights install_learners("regr.gbm") learner = lrn("regr.gbm") learner #> : Gradient Boosting #> * Model: - #> * Parameters: keep.data=FALSE, n.cores=1 #> * Packages: mlr3, mlr3extralearners, gbm #> * Predict Types: [response] #> * Feature Types: integer, numeric, factor, ordered #> * Properties: importance, missings, weights ``` You can now use the learner to fit a model and make predictions. ``` r task = tsk("california_housing") task #> #> ── (20640x10): California House Value ─────────────────────────────── #> • Target: median_house_value #> • Properties: - #> • Features (9): #> • dbl (8): households, housing_median_age, latitude, longitude, #> median_income, population, total_bedrooms, total_rooms #> • fct (1): ocean_proximity split = partition(task) learner$train(task, split$train) #> Distribution not specified, assuming gaussian ... learner$predict(task, split$test) #> #> ── for 6811 observations: ───────────────────────────────────── #> row_ids truth response #> 6 269700 267521.73 #> 15 159200 206521.92 #> 19 158700 186987.58 #> --- --- --- #> 20635 116800 138468.71 #> 20638 92300 81523.13 #> 20640 89400 93127.56 ``` You can learn more about using learners by [reading our book](https://mlr3book.mlr-org.com/chapters/chapter1/introduction_and_overview.html#mlr3-by-example). ## Extending mlr3extralearners An in-depth tutorial on how to add learners can be found in the [package website](https://mlr3extralearners.mlr-org.com/articles/extending.html). ## Acknowledgements This R package is developed as part of the [Mathematical Research Data Initiative](https://www.mardi4nfdi.de/about/mission). ## Citing mlr3extralearners If you use `mlr3extralearners`, please cite our [JOSS paper](https://doi.org/10.21105/joss.08331): ``` R @Article{Fischer2025, title = {mlr3extralearners: {E}xpanding the mlr3 {E}cosystem with {C}ommunity-{D}riven {L}earner {I}ntegration}, author = {Sebastian Fischer and John Zobolas and Raphael Sonabend and Marc Becker and Michel Lang and Martin Binder and Lennart Schneider and Lukas Burk and Patrick Schratz and Byron C. Jaeger and Stephen A. Lauer and Lorenz A. Kapsner and Maximilian Mücke and Zezhi Wang and Damir Pulatov and Keenan Ganz and Henri Funk and Liana Harutyunyan and Pierre Camilleri and Philipp Kopper and Andreas Bender and Baisu Zhou and Niko German and Lona Koers and Anna Nazarova and Bernd Bischl}, journal = {Journal of Open Source Software}, year = {2025}, volume = {10}, number = {115}, pages = {8331}, doi = {10.21105/joss.08331}, } ``` # Package index ## Helpers - [`list_mlr3learners()`](https://mlr3extralearners.mlr-org.com/reference/list_mlr3learners.md) : List Learners in mlr3verse - [`install_learners()`](https://mlr3extralearners.mlr-org.com/reference/install_learners.md) : Install Learner Dependencies - [`assert_python_packages()`](https://mlr3extralearners.mlr-org.com/reference/assert_python_packages.md) : Assert Python Packages ## Classification Learners - [`mlr_learners_classif.AdaBoostM1`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.AdaBoostM1.md) [`LearnerClassifAdaBoostM1`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.AdaBoostM1.md) : Classification AdaBoostM1 Learner - [`mlr_learners_classif.C50`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.C50.md) [`LearnerClassifC50`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.C50.md) : Classification C5.0 Learner - [`mlr_learners_classif.IBk`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.IBk.md) [`LearnerClassifIBk`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.IBk.md) : Classification IBk Learner - [`mlr_learners_classif.J48`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.J48.md) [`LearnerClassifJ48`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.J48.md) : Classification J48 Learner - [`mlr_learners_classif.JRip`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.JRip.md) [`LearnerClassifJRip`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.JRip.md) : Classification JRip Learner - [`mlr_learners_classif.LMT`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.LMT.md) [`LearnerClassifLMT`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.LMT.md) : Classification Logistic Model Trees Learner - [`mlr_learners_classif.OneR`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.OneR.md) [`LearnerClassifOneR`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.OneR.md) : Classification OneR Learner - [`mlr_learners_classif.PART`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.PART.md) [`LearnerClassifPART`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.PART.md) : Classification PART Learner - [`mlr_learners_classif.abess`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.abess.md) [`LearnerClassifAbess`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.abess.md) : Classification Abess Learner - [`mlr_learners_classif.ada`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.ada.md) [`LearnerClassifAdaBoosting`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.ada.md) : Classification Boosting Learner - [`mlr_learners_classif.adabag`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.adabag.md) [`LearnerClassifAdabag`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.adabag.md) : Classification Boosting Learner - [`mlr_learners_classif.aorsf`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.aorsf.md) [`LearnerClassifObliqueRandomForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.aorsf.md) : Oblique Random Forest Classifier - [`mlr_learners_classif.bam`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.bam.md) [`LearnerClassifBam`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.bam.md) : Classification Fast Generalized Additive Model Learner - [`mlr_learners_classif.bart`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.bart.md) [`LearnerClassifBart`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.bart.md) : Classification BART (Bayesian Additive Regression Trees) Learner - [`mlr_learners_classif.bayes_net`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.bayes_net.md) [`LearnerClassifBayesNet`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.bayes_net.md) : Classification Bayes Network Learner - [`mlr_learners_classif.blockforest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.blockforest.md) [`LearnerClassifBlockForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.blockforest.md) : BlockForest Classification Learner - [`mlr_learners_classif.bst`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.bst.md) [`LearnerClassifBst`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.bst.md) : Classification Gradient Boosting Learner - [`mlr_learners_classif.catboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.catboost.md) [`LearnerClassifCatboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.catboost.md) : Gradient Boosted Decision Trees Classification Learner - [`mlr_learners_classif.cforest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.cforest.md) [`LearnerClassifCForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.cforest.md) : Classification Conditional Random Forest Learner - [`mlr_learners_classif.ctree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.ctree.md) [`LearnerClassifCTree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.ctree.md) : Classification Conditional Inference Tree Learner - [`mlr_learners_classif.cv_ncvreg`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.cv_ncvreg.md) [`LearnerClassifNCVreg`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.cv_ncvreg.md) : Cross-Validated MCP- or SCAD-penalized Classification Learner - [`mlr_learners_classif.dbnDNN`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.dbnDNN.md) [`LearnerClassifDbnDNN`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.dbnDNN.md) : Deep Neural Network with DBN Pretraining Learner - [`mlr_learners_classif.decision_stump`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.decision_stump.md) [`LearnerClassifDecisionStump`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.decision_stump.md) : Classification Decision Stump Learner - [`mlr_learners_classif.decision_table`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.decision_table.md) [`LearnerClassifDecisionTable`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.decision_table.md) : Classification Decision Table Learner - [`mlr_learners_classif.dlda`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.dlda.md) [`LearnerClassifDiagLda`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.dlda.md) : Classification Diagonal Linear Discriminant Analysis Learner - [`mlr_learners_classif.earth`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.earth.md) [`LearnerClassifEarth`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.earth.md) : Classification MARS (Multivariate Adaptive Regression Splines) Learner - [`mlr_learners_classif.evtree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.evtree.md) [`LearnerClassifEvtree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.evtree.md) : Classification Decision Tree Learner - [`mlr_learners_classif.exhaustive_search`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.exhaustive_search.md) [`LearnerClassifExhaustiveSearch`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.exhaustive_search.md) : Logistic Regression with Exhaustive Search - [`mlr_learners_classif.fastai`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.fastai.md) [`LearnerClassifFastai`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.fastai.md) : Classification Neural Network Learner - [`mlr_learners_classif.fnn`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.fnn.md) [`LearnerClassifFNN`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.fnn.md) : Fast Nearest Neighbor Classification - [`mlr_learners_classif.gam`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.gam.md) [`LearnerClassifGam`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.gam.md) : Classification Generalized Additive Model Learner - [`mlr_learners_classif.gamboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.gamboost.md) [`LearnerClassifGAMBoost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.gamboost.md) : Boosted Generalized Additive Classification Learner - [`mlr_learners_classif.gausspr`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.gausspr.md) [`LearnerClassifGausspr`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.gausspr.md) : Classification Gaussian Process Learner - [`mlr_learners_classif.gbm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.gbm.md) [`LearnerClassifGBM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.gbm.md) : Gradient Boosting Classification Learner - [`mlr_learners_classif.glmboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.glmboost.md) [`LearnerClassifGLMBoost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.glmboost.md) : Boosted Generalized Linear Classification Learner - [`mlr_learners_classif.glmer`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.glmer.md) [`LearnerClassifGlmer`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.glmer.md) : Classification Linear Mixed Effect Learner - [`mlr_learners_classif.h2o.deeplearning`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.h2o.deeplearning.md) [`LearnerClassifH2ODeeplearning`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.h2o.deeplearning.md) : Classification H2O Deep Learning Learner - [`mlr_learners_classif.h2o.gbm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.h2o.gbm.md) [`LearnerClassifH2OGBM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.h2o.gbm.md) : Classification H2O GBM Learner - [`mlr_learners_classif.h2o.glm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.h2o.glm.md) [`LearnerClassifH2OGLM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.h2o.glm.md) : Classification H2O GLM Learner - [`mlr_learners_classif.h2o.randomForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.h2o.randomForest.md) [`LearnerClassifH2ORandomForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.h2o.randomForest.md) : Classification H2O Random Forest Learner - [`mlr_learners_classif.imbalanced_rfsrc`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.imbalanced_rfsrc.md) [`LearnerClassifImbalancedRandomForestSRC`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.imbalanced_rfsrc.md) : Classification Imbalanced Random Forest Src Learner - [`mlr_learners_classif.knn`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.knn.md) [`LearnerClassifKnn`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.knn.md) : Classification K-nearest Neighbor Learner - [`mlr_learners_classif.kstar`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.kstar.md) [`LearnerClassifKStar`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.kstar.md) : Classification KStar Learner - [`mlr_learners_classif.ksvm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.ksvm.md) [`LearnerClassifKSVM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.ksvm.md) : Classification Kernlab Support Vector Machine - [`mlr_learners_classif.liblinear`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.liblinear.md) [`LearnerClassifLiblineaR`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.liblinear.md) : LiblineaR Classification Learner - [`mlr_learners_classif.lightgbm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.lightgbm.md) [`LearnerClassifLightGBM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.lightgbm.md) : Classification LightGBM Learner - [`mlr_learners_classif.logistic`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.logistic.md) [`LearnerClassifLogistic`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.logistic.md) : Classification Logistic Regression Learner - [`mlr_learners_classif.lssvm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.lssvm.md) [`LearnerClassifLSSVM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.lssvm.md) : Classification Least Squares Support Vector Machine Learner - [`mlr_learners_classif.lvq1`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.lvq1.md) [`LearnerClassifLvq1`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.lvq1.md) : Classification Learning Vector Quantization 1 - [`mlr_learners_classif.mda`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.mda.md) [`LearnerClassifMda`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.mda.md) : Classification Discriminant Analysis Learner - [`mlr_learners_classif.mdeb`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.mdeb.md) [`LearnerClassifMdeb`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.mdeb.md) : Classification Linear Discriminant Analysis Learner - [`mlr_learners_classif.mlp_rsnns`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.mlp_rsnns.md) [`LearnerClassifMLPRsnns`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.mlp_rsnns.md) : Classification Multilayer Perceptron Learner - [`mlr_learners_classif.mob`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.mob.md) [`LearnerClassifMob`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.mob.md) : Classification Model-based Recursive Partitioning Learner - [`mlr_learners_classif.multilayer_perceptron`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.multilayer_perceptron.md) [`LearnerClassifMultilayerPerceptron`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.multilayer_perceptron.md) : Classification MultilayerPerceptron Learner - [`mlr_learners_classif.naive_bayes_multinomial`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.naive_bayes_multinomial.md) [`LearnerClassifNaiveBayesMultinomial`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.naive_bayes_multinomial.md) : Classification Multinomial Naive Bayes Learner From Weka - [`mlr_learners_classif.naive_bayes_weka`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.naive_bayes_weka.md) [`LearnerClassifNaiveBayesWeka`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.naive_bayes_weka.md) : Classification Naive Bayes Learner From Weka - [`mlr_learners_classif.neuralnet`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.neuralnet.md) [`LearnerClassifNeuralnet`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.neuralnet.md) : Classification Neural Network Learner - [`mlr_learners_classif.nnTrain`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.nnTrain.md) [`LearnerClassifNNTrain`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.nnTrain.md) : Classification Neural Network Learner - [`mlr_learners_classif.opls`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.opls.md) [`LearnerClassifOPLS`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.opls.md) : OPLS-DA Classification Learner - [`mlr_learners_classif.penalized`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.penalized.md) [`LearnerClassifPenalized`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.penalized.md) : Classification L1 and L2 Penalized Learner - [`mlr_learners_classif.plsdaCaret`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.plsdaCaret.md) [`LearnerClassifPlsdaCaret`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.plsdaCaret.md) : Partial Least Squares Discriminant Analysis Learner - [`mlr_learners_classif.polyFit`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.polyFit.md) [`LearnerClassifPolyFit`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.polyFit.md) : Polynomial GLM Learner - [`mlr_learners_classif.priority_lasso`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.priority_lasso.md) [`LearnerClassifPriorityLasso`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.priority_lasso.md) : Classification Priority Lasso Learner - [`mlr_learners_classif.rFerns`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.rFerns.md) [`LearnerClassifRferns`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.rFerns.md) : Random Ferns Classification Learner - [`mlr_learners_classif.randomForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.randomForest.md) [`LearnerClassifRandomForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.randomForest.md) : Classification Random Forest Learner - [`mlr_learners_classif.random_forest_weka`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.random_forest_weka.md) [`LearnerClassifRandomForestWeka`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.random_forest_weka.md) : Classification Random Forest Learner from Weka - [`mlr_learners_classif.random_tree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.random_tree.md) [`LearnerClassifRandomTree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.random_tree.md) : Classification Random Tree Learner - [`mlr_learners_classif.rda`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.rda.md) [`LearnerClassifRda`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.rda.md) : Classification Discriminant Analysis Learner - [`mlr_learners_classif.reptree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.reptree.md) [`LearnerClassifREPTree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.reptree.md) : Classification Decision Tree Learner - [`mlr_learners_classif.rfsrc`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.rfsrc.md) [`LearnerClassifRandomForestSRC`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.rfsrc.md) : Classification Random Forest SRC Learner - [`mlr_learners_classif.rotationForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.rotationForest.md) [`LearnerClassifRotationForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.rotationForest.md) : Classification Rotation Forest Learner - [`mlr_learners_classif.saeDNN`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.saeDNN.md) [`LearnerClassifSaeDNN`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.saeDNN.md) : Classification Stacked Autoencoder Deep Neural Network Learner - [`mlr_learners_classif.sda`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.sda.md) [`LearnerClassifSda`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.sda.md) : Shrinkage Discriminant Analysis - [`mlr_learners_classif.sdlda`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.sdlda.md) [`LearnerClassifSdlda`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.sdlda.md) : Classification Linear Discriminant Analysis Learner - [`mlr_learners_classif.sgd`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.sgd.md) [`LearnerClassifSGD`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.sgd.md) : Classification Stochastic Gradient Descent Learner - [`mlr_learners_classif.simple_logistic`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.simple_logistic.md) [`LearnerClassifSimpleLogistic`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.simple_logistic.md) : Classification SimpleLogistic Learner - [`mlr_learners_classif.smo`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.smo.md) [`LearnerClassifSMO`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.smo.md) : Classification Support Vector Machine Learner - [`mlr_learners_classif.sparseLDA`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.sparseLDA.md) [`LearnerClassifSparseLDA`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.sparseLDA.md) : Sparse Discriminant Analysis - [`mlr_learners_classif.stepPlr`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.stepPlr.md) [`LearnerClassifStepPlr`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.stepPlr.md) : Classification Logistic Regression Learner - [`mlr_learners_classif.tabfm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.tabfm.md) [`LearnerClassifTabFM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.tabfm.md) : TabFM Classification Learner - [`mlr_learners_classif.tabpfn`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.tabpfn.md) [`LearnerClassifTabPFN`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.tabpfn.md) : TabPFN Classification Learner - [`mlr_learners_classif.voted_perceptron`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.voted_perceptron.md) [`LearnerClassifVotedPerceptron`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_classif.voted_perceptron.md) : Classification Voted Perceptron Learner ## Regression Learners - [`mlr_learners_regr.IBk`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.IBk.md) [`LearnerRegrIBk`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.IBk.md) : Regression IBk Learner - [`mlr_learners_regr.M5Rules`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.M5Rules.md) [`LearnerRegrM5Rules`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.M5Rules.md) : Regression M5Rules Learner - [`mlr_learners_regr.RRF`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.RRF.md) [`LearnerRegrRRF`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.RRF.md) : Regression Regularized Random Forest Learner - [`mlr_learners_regr.abess`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.abess.md) [`LearnerRegrAbess`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.abess.md) : Regression Abess Learner - [`mlr_learners_regr.aorsf`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.aorsf.md) [`LearnerRegrObliqueRandomForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.aorsf.md) : Oblique Random Forest Regressor - [`mlr_learners_regr.bam`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.bam.md) [`LearnerRegrBam`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.bam.md) : Regression Fast Generalized Additive Model Learner - [`mlr_learners_regr.bart`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.bart.md) [`LearnerRegrBart`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.bart.md) : Regression BART (Bayesian Additive Regression Trees) Learner - [`mlr_learners_regr.bcart`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.bcart.md) [`LearnerRegrBcart`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.bcart.md) : Regression Bayesian CART Learner - [`mlr_learners_regr.bgp`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.bgp.md) [`LearnerRegrBgp`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.bgp.md) : Regression Bayesian Gaussian Process Learner - [`mlr_learners_regr.bgpllm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.bgpllm.md) [`LearnerRegrBgpllm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.bgpllm.md) : Regression Bayesian Gaussian Process LLM Learner - [`mlr_learners_regr.blm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.blm.md) [`LearnerRegrBlm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.blm.md) : Regression Bayesian Linear Model Learner - [`mlr_learners_regr.blockforest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.blockforest.md) [`LearnerRegrBlockForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.blockforest.md) : BlockForest Regression Learner - [`mlr_learners_regr.botorch_fullybayesian`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.botorch_fullybayesian.md) [`LearnerRegrBotorchFullyBayesian`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.botorch_fullybayesian.md) : BoTorch Fully Bayesian SingleTaskGP Regression Learner - [`mlr_learners_regr.botorch_mixedsingletaskgp`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.botorch_mixedsingletaskgp.md) [`LearnerRegrBotorchMixedSingleTaskGP`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.botorch_mixedsingletaskgp.md) : BoTorch MixedSingleTaskGP Regression Learner - [`mlr_learners_regr.botorch_singletaskgp`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.botorch_singletaskgp.md) [`LearnerRegrBotorchSingleTaskGP`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.botorch_singletaskgp.md) : BoTorch SingleTaskGP Regression Learner - [`mlr_learners_regr.brnn`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.brnn.md) [`LearnerRegrBrnn`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.brnn.md) : Regression Neural Network Learner - [`mlr_learners_regr.bst`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.bst.md) [`LearnerRegrBst`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.bst.md) : Regression Gradient Boosting Learner - [`mlr_learners_regr.btgp`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.btgp.md) [`LearnerRegrBtgp`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.btgp.md) : Regression Bayesian Treed Gaussian Process Learner - [`mlr_learners_regr.btgpllm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.btgpllm.md) [`LearnerRegrBtgpllm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.btgpllm.md) : Regression Bayesian Treed Gaussian Process LLM Learner - [`mlr_learners_regr.btlm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.btlm.md) [`LearnerRegrBtlm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.btlm.md) : Regression Bayesian Treed Linear Model Learner - [`mlr_learners_regr.catboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.catboost.md) [`LearnerRegrCatboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.catboost.md) : Gradient Boosted Decision Trees Regression Learner - [`mlr_learners_regr.cforest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.cforest.md) [`LearnerRegrCForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.cforest.md) : Regression Conditional Random Forest Learner - [`mlr_learners_regr.crs`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.crs.md) [`LearnerRegrCrs`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.crs.md) : Regression Splines Learner - [`mlr_learners_regr.ctree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.ctree.md) [`LearnerRegrCTree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.ctree.md) : Regression Conditional Inference Tree Learner - [`mlr_learners_regr.cubist`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.cubist.md) [`LearnerRegrCubist`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.cubist.md) : Regression Cubist Learner - [`mlr_learners_regr.cv_ncvreg`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.cv_ncvreg.md) [`LearnerRegrNCVreg`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.cv_ncvreg.md) : Cross-Validated MCP- or SCAD-penalized Regression Learner - [`mlr_learners_regr.decision_stump`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.decision_stump.md) [`LearnerRegrDecisionStump`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.decision_stump.md) : Regression Decision Stump Learner - [`mlr_learners_regr.decision_table`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.decision_table.md) [`LearnerRegrDecisionTable`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.decision_table.md) : Regression Decision Table Learner - [`mlr_learners_regr.earth`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.earth.md) [`LearnerRegrEarth`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.earth.md) : Implementation of Multivariate Adaptive Regression Splines - [`mlr_learners_regr.evtree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.evtree.md) [`LearnerRegrEvtree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.evtree.md) : Regression Decision Tree Learner - [`mlr_learners_regr.exhaustive_search`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.exhaustive_search.md) [`LearnerRegrExhaustiveSearch`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.exhaustive_search.md) : Linear Regression with Exhaustive Search - [`mlr_learners_regr.fnn`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.fnn.md) [`LearnerRegrFNN`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.fnn.md) : Regression Fast Nearest Neighbor Search Learner - [`mlr_learners_regr.frbs`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.frbs.md) [`LearnerRegrFrbs`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.frbs.md) : Regression Fuzzy Rule-based System Learner - [`mlr_learners_regr.gam`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.gam.md) [`LearnerRegrGam`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.gam.md) : Regression Generalized Additive Model Learner - [`mlr_learners_regr.gamboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.gamboost.md) [`LearnerRegrGAMBoost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.gamboost.md) : Boosted Generalized Additive Regression Learner - [`mlr_learners_regr.gaussian_processes`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.gaussian_processes.md) [`LearnerRegrGaussianProcesses`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.gaussian_processes.md) : Regression Gaussian Processes Learner From Weka - [`mlr_learners_regr.gausspr`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.gausspr.md) [`LearnerRegrGausspr`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.gausspr.md) : Regression Gaussian Process Learner - [`mlr_learners_regr.gbm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.gbm.md) [`LearnerRegrGBM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.gbm.md) : Regression Gradient Boosting Machine Learner - [`mlr_learners_regr.glm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.glm.md) [`LearnerRegrGlm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.glm.md) : Generalized Linear Regression - [`mlr_learners_regr.glmboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.glmboost.md) [`LearnerRegrGLMBoost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.glmboost.md) : Boosted Generalized Linear Regression Learner - [`mlr_learners_regr.gpfit`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.gpfit.md) [`LearnerRegrGPfit`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.gpfit.md) : Regression Gaussian Process Learner (GPfit) - [`mlr_learners_regr.grf`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.grf.md) [`LearnerRegrGRF`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.grf.md) : Generalized Random Forest Regression Learner - [`mlr_learners_regr.h2o.deeplearning`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.h2o.deeplearning.md) [`LearnerRegrH2ODeeplearning`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.h2o.deeplearning.md) : Regression H2O Deep Learning Learner - [`mlr_learners_regr.h2o.gbm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.h2o.gbm.md) [`LearnerRegrH2OGBM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.h2o.gbm.md) : Regression H2O GBM Learner - [`mlr_learners_regr.h2o.glm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.h2o.glm.md) [`LearnerRegrH2OGLM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.h2o.glm.md) : Generalized Linear Regression H2O Learner - [`mlr_learners_regr.h2o.randomForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.h2o.randomForest.md) [`LearnerRegrH2ORandomForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.h2o.randomForest.md) : Regression H2O Random Forest Learner - [`mlr_learners_regr.kstar`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.kstar.md) [`LearnerRegrKStar`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.kstar.md) : Regression KStar Learner - [`mlr_learners_regr.ksvm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.ksvm.md) [`LearnerRegrKSVM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.ksvm.md) : Regression Kernlab Support Vector Machine - [`mlr_learners_regr.laGP`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.laGP.md) [`LearnerRegrLaGP`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.laGP.md) : Regression Local Approximate Gaussian Process Learner - [`mlr_learners_regr.liblinear`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.liblinear.md) [`LearnerRegrLiblineaR`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.liblinear.md) : L2-Regularized Support Vector Regression Learner - [`mlr_learners_regr.lightgbm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.lightgbm.md) [`LearnerRegrLightGBM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.lightgbm.md) : Regression LightGBM Learner - [`mlr_learners_regr.linear_regression`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.linear_regression.md) [`LearnerRegrLinearRegression`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.linear_regression.md) : Regression Linear Regression Learner From Weka - [`mlr_learners_regr.lmer`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.lmer.md) [`LearnerRegrLmer`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.lmer.md) : Regression Linear Mixed Effects Learner - [`mlr_learners_regr.m5p`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.m5p.md) [`LearnerRegrM5P`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.m5p.md) : Regression M5P Learner - [`mlr_learners_regr.mars`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.mars.md) [`LearnerRegrMars`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.mars.md) : Regression Mars Learner - [`mlr_learners_regr.mob`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.mob.md) [`LearnerRegrMob`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.mob.md) : Regression Model-based Recursive Partitioning Learner - [`mlr_learners_regr.mqgam`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.mqgam.md) [`LearnerRegrMQGam`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.mqgam.md) : Generalized Additive Quantile Regression Model for Multiple Quantiles - [`mlr_learners_regr.multilayer_perceptron`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.multilayer_perceptron.md) [`LearnerRegrMultilayerPerceptron`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.multilayer_perceptron.md) : Regression MultilayerPerceptron Learner - [`mlr_learners_regr.pcr`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.pcr.md) [`LearnerRegrPcr`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.pcr.md) : Principal Component Regression Learner - [`mlr_learners_regr.penalized`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.penalized.md) [`LearnerRegrPenalized`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.penalized.md) : Regression L1 and L2 Penalized Learner - [`mlr_learners_regr.plsr`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.plsr.md) [`LearnerRegrPlsr`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.plsr.md) : Partial Least Squares Regression - [`mlr_learners_regr.polyFit`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.polyFit.md) [`LearnerRegrPoly`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.polyFit.md) : Polynomial Regression Learner - [`mlr_learners_regr.polynomial`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.polynomial.md) [`LearnerRegrPolynomial`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.polynomial.md) : Polynomial Regression Learner - [`mlr_learners_regr.priority_lasso`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.priority_lasso.md) [`LearnerRegrPriorityLasso`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.priority_lasso.md) : Regression Priority Lasso Learner - [`mlr_learners_regr.qgam`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.qgam.md) [`LearnerRegrQGam`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.qgam.md) : Generalized Additive Quantile Regression Model - [`mlr_learners_regr.randomForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.randomForest.md) [`LearnerRegrRandomForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.randomForest.md) : Regression Random Forest Learner - [`mlr_learners_regr.random_forest_weka`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.random_forest_weka.md) [`LearnerRegrRandomForestWeka`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.random_forest_weka.md) : Regression Random Forest Learner from Weka - [`mlr_learners_regr.random_tree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.random_tree.md) [`LearnerRegrRandomTree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.random_tree.md) : Regression Random Tree Learner - [`mlr_learners_regr.reptree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.reptree.md) [`LearnerRegrREPTree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.reptree.md) : Regression Decision Tree Learner - [`mlr_learners_regr.rfsrc`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.rfsrc.md) [`LearnerRegrRandomForestSRC`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.rfsrc.md) : Regression Random Forest SRC Learner - [`mlr_learners_regr.rsm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.rsm.md) [`LearnerRegrRSM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.rsm.md) : Regression Response Surface Model Learner - [`mlr_learners_regr.rvm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.rvm.md) [`LearnerRegrRVM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.rvm.md) : Regression Relevance Vector Machine Learner - [`mlr_learners_regr.sgd`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.sgd.md) [`LearnerRegrSGD`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.sgd.md) : Regression Stochastic Gradient Descent Learner - [`mlr_learners_regr.simple_linear_regression`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.simple_linear_regression.md) [`LearnerRegrSimpleLinearRegression`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.simple_linear_regression.md) : Regression SimpleLinearRegression Learner from Weka - [`mlr_learners_regr.smo_reg`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.smo_reg.md) [`LearnerRegrSMOreg`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.smo_reg.md) : Regression Support Vector Machine Learner - [`mlr_learners_regr.tabfm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.tabfm.md) [`LearnerRegrTabFM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.tabfm.md) : TabFM Regression Learner - [`mlr_learners_regr.tabpfn`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.tabpfn.md) [`LearnerRegrTabPFN`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_regr.tabpfn.md) : TabPFN Regression Learner ## Survival Learners - [`mlr_learners_surv.aorsf`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.aorsf.md) [`LearnerSurvAorsf`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.aorsf.md) : Accelerated Oblique Random Survival Forest Learner - [`mlr_learners_surv.bart`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.bart.md) [`LearnerSurvLearnerSurvBART`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.bart.md) : Survival Bayesian Additive Regression Trees Learner - [`mlr_learners_surv.blackboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.blackboost.md) [`LearnerSurvBlackBoost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.blackboost.md) : Gradient Boosting with Regression Trees Survival Learner - [`mlr_learners_surv.blockforest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.blockforest.md) [`LearnerSurvBlockForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.blockforest.md) : BlockForest Survival Learner - [`mlr_learners_surv.cforest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.cforest.md) [`LearnerSurvCForest`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.cforest.md) : Survival Conditional Random Forest Learner - [`mlr_learners_surv.coxboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.coxboost.md) [`LearnerSurvCoxboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.coxboost.md) : Survival Cox Model with Likelihood Based Boosting Learner - [`mlr_learners_surv.ctree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.ctree.md) [`LearnerSurvCTree`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.ctree.md) : Survival Conditional Inference Tree Learner - [`mlr_learners_surv.cv_coxboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.cv_coxboost.md) [`LearnerSurvCVCoxboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.cv_coxboost.md) : Survival Cox Model with Cross-Validation Likelihood Based Boosting Learner - [`mlr_learners_surv.cv_glmnet`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.cv_glmnet.md) [`LearnerSurvCVGlmnet`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.cv_glmnet.md) : Cross-Validated GLM with Elastic Net Regularization Survival Learner - [`mlr_learners_surv.cv_ncvsurv`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.cv_ncvsurv.md) [`LearnerSurvNCVsurv`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.cv_ncvsurv.md) : Cross-Validated MCP- or SCAD-penalized Survival Learner - [`mlr_learners_surv.flexreg`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.flexreg.md) [`LearnerSurvFlexReg`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.flexreg.md) : Survival Flexible Parametric Learner - [`mlr_learners_surv.flexspline`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.flexspline.md) [`LearnerSurvFlexSpline`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.flexspline.md) : Survival Flexible Parametric Spline Learner - [`mlr_learners_surv.gam.cox`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.gam.cox.md) [`LearnerSurvGamCox`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.gam.cox.md) : Cox Proportional Hazards Generalized Additive Learner - [`mlr_learners_surv.gamboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.gamboost.md) [`LearnerSurvGAMBoost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.gamboost.md) : Boosted Generalized Additive Survival Learner - [`mlr_learners_surv.gbm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.gbm.md) [`LearnerSurvGBM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.gbm.md) : Survival Gradient Boosting Machine Learner - [`mlr_learners_surv.glmboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.glmboost.md) [`LearnerSurvGLMBoost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.glmboost.md) : Boosted Generalized Linear Survival Learner - [`mlr_learners_surv.glmnet`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.glmnet.md) [`LearnerSurvGlmnet`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.glmnet.md) : GLM with Elastic Net Regularization Survival Learner - [`mlr_learners_surv.mboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.mboost.md) [`LearnerSurvMBoost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.mboost.md) : Boosted Generalized Additive Survival Learner - [`mlr_learners_surv.nelson`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.nelson.md) [`LearnerSurvNelson`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.nelson.md) : Survival Nelson-Aalen Estimator Learner - [`mlr_learners_surv.penalized`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.penalized.md) [`LearnerSurvPenalized`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.penalized.md) : Survival L1 and L2 Penalized Cox Learner - [`mlr_learners_surv.priority_lasso`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.priority_lasso.md) [`LearnerSurvPriorityLasso`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.priority_lasso.md) : Survival Priority Lasso Learner - [`mlr_learners_surv.ranger`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.ranger.md) [`LearnerSurvRanger`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.ranger.md) : Ranger Survival Learner - [`mlr_learners_surv.rfsrc`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.rfsrc.md) [`LearnerSurvRandomForestSRC`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.rfsrc.md) : Survival Random Forest SRC Learner - [`mlr_learners_surv.survdnn`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.survdnn.md) [`LearnerSurvDNN`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.survdnn.md) : SurvDNN Survival Learner - [`mlr_learners_surv.svm`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.svm.md) [`LearnerSurvSVM`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.svm.md) : Survival Support Vector Machine Learner - [`mlr_learners_surv.xgboost.aft`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.xgboost.aft.md) [`LearnerSurvXgboostAFT`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.xgboost.aft.md) : Extreme Gradient Boosting AFT Survival Learner - [`mlr_learners_surv.xgboost.cox`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.xgboost.cox.md) [`LearnerSurvXgboostCox`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_surv.xgboost.cox.md) : Extreme Gradient Boosting Cox Survival Learner ## Competing Risks Learners - [`mlr_learners_cmprsk.coxboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_cmprsk.coxboost.md) [`LearnerCompRisksCoxboost`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_cmprsk.coxboost.md) : Competing Risks Cox Learner with Likelihood Based Boosting - [`mlr_learners_cmprsk.rfsrc`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_cmprsk.rfsrc.md) [`LearnerCompRisksRandomForestSRC`](https://mlr3extralearners.mlr-org.com/reference/mlr_learners_cmprsk.rfsrc.md) : Random Forest Competing Risks Learner ## General - [`mlr3extralearners`](https://mlr3extralearners.mlr-org.com/reference/mlr3extralearners-package.md) [`mlr3extralearners-package`](https://mlr3extralearners.mlr-org.com/reference/mlr3extralearners-package.md) : mlr3extralearners: Extra Learners For mlr3 # Articles ### All vignettes - [Common Issues when Creating a new Learner](https://mlr3extralearners.mlr-org.com/articles/common_issues.md): - [Creating a new Learner](https://mlr3extralearners.mlr-org.com/articles/extending.md): - [Learner Status](https://mlr3extralearners.mlr-org.com/articles/learner_status.md): - [Search Learners](https://mlr3extralearners.mlr-org.com/articles/list_learners.md):