A Learner that encapsulates a Graph to be used in mlr3 resampling and benchmarks.

The Graph must return a single Prediction on its $predict() call. The result of the $train() call is discarded, only the internal state changes during training are used.

The predict_type of a GraphLearner can be obtained or set via it's predict_type active binding. Setting a new predict type will try to set the predict_type in all relevant PipeOp / Learner encapsulated within the Graph. Similarly, the predict_type of a Graph will always be the smallest denominator in the Graph.


R6Class object inheriting from mlr3::Learner.

See Also

Other Learners: mlr_learners_avg

  • mlr_learners_graph
  • GraphLearner
Documentation reproduced from package mlr3pipelines, version 0.3.0, License: LGPL-3

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