mlr: Prediction – R documentation

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Prediction

Prediction object.

Description

Result from predict.WrappedModel. Use as.data.frame to access all information in a convenient format. The function getPredictionProbabilities is useful to access predicted probabilities.

The data member of the object contains always the following columns: id, index numbers of predicted cases from the task, response either a numeric or a factor, the predicted response values, truth, either a numeric or a factor, the true target values. If probabilities were predicted, as many numeric columns as there were classes named prob.classname. If standard errors were predicted, a numeric column named se.

The constructor makePrediction is mainly for internal use.

Object members:

predict.type (character(1)): Type set in setPredictType.
data (data.frame): See details.
threshold (numeric(1)): Threshold set in predict function.
task.desc (TaskDesc): Task description object.
time (numeric(1)): Time learner needed to generate predictions.
error (character(1)): Any error messages generated by the learner (default NA_character_).

Internal, do not use!

Usage

makePrediction(
  task.desc,
  row.names,
  id,
  truth,
  predict.type,
  predict.threshold = NULL,
  y,
  time,
  error = NA_character_,
  dump = NULL
)

mlr

Machine Learning in R

v2.19.0

BSD_2_clause + file LICENSE

Authors

Bernd Bischl [aut] (<https://orcid.org/0000-0001-6002-6980>), Michel Lang [aut] (<https://orcid.org/0000-0001-9754-0393>), Lars Kotthoff [aut], Patrick Schratz [aut, cre] (<https://orcid.org/0000-0003-0748-6624>), Julia Schiffner [aut], Jakob Richter [aut], Zachary Jones [aut], Giuseppe Casalicchio [aut] (<https://orcid.org/0000-0001-5324-5966>), Mason Gallo [aut], Jakob Bossek [ctb] (<https://orcid.org/0000-0002-4121-4668>), Erich Studerus [ctb] (<https://orcid.org/0000-0003-4233-0182>), Leonard Judt [ctb], Tobias Kuehn [ctb], Pascal Kerschke [ctb] (<https://orcid.org/0000-0003-2862-1418>), Florian Fendt [ctb], Philipp Probst [ctb] (<https://orcid.org/0000-0001-8402-6790>), Xudong Sun [ctb] (<https://orcid.org/0000-0003-3269-2307>), Janek Thomas [ctb] (<https://orcid.org/0000-0003-4511-6245>), Bruno Vieira [ctb], Laura Beggel [ctb] (<https://orcid.org/0000-0002-8872-8535>), Quay Au [ctb] (<https://orcid.org/0000-0002-5252-8902>), Martin Binder [ctb], Florian Pfisterer [ctb], Stefan Coors [ctb], Steve Bronder [ctb], Alexander Engelhardt [ctb], Christoph Molnar [ctb], Annette Spooner [ctb]

Initial release

Prediction

Description

Usage

mlr

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