mlr: makeFilter – R documentation

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makeFilter

Create a feature filter.

Description

Creates and registers custom feature filters. Implemented filters can be listed with listFilterMethods. Additional documentation for the fun parameter specific to each filter can be found in the description.

Usage

makeFilter(name, desc, pkg, supported.tasks, supported.features, fun)

Arguments

`name`	(`character(1)`) Identifier for the filter.
`desc`	(`character(1)`) Short description of the filter.
`pkg`	(`character(1)`) Source package where the filter is implemented.
`supported.tasks`	(character) Task types supported.
`supported.features`	(character) Feature types supported.
`fun`	(`function(task, nselect, ...`) Function which takes a task and returns a named numeric vector of scores, one score for each feature of `task`. Higher scores mean higher importance of the feature. At least `nselect` features must be calculated, the remaining may be set to `NA` or omitted, and thus will not be selected. the original order will be restored if necessary.

Value

Object of class “Filter”.

References

Kira, Kenji and Rendell, Larry (1992). The Feature Selection Problem: Traditional Methods and a New Algorithm. AAAI-92 Proceedings.

Kononenko, Igor et al. Overcoming the myopia of inductive learning algorithms with RELIEFF (1997), Applied Intelligence, 7(1), p39-55.

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