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rmlr3

MLR 3 Learners contains 5 learner only?

I am learning new MLR environment using MLR3

Compared to MLR, I can get the learners list using:

library(mlr)
ListLearners()

in MLR3, I get the learners list using:

library(mlr3)
mlr_learners
<DictionaryLearner> with 5 stored values
Keys: classif.debug, classif.featureless, classif.rpart, regr.featureless,
  regr.rpart

My Question is, does MLR3 only provide these 5 unique learners?

Solution

  • Install and load the mlr3learners package for more regression and classification learners. The dictionary mlr_learners will automatically get populated. You can install even more learners from GitHub, see https://github.com/mlr3learners/mlr3learners.drat.