mlr: capLargeValues – R documentation

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capLargeValues

Convert large/infinite numeric values in a data.frame or task.

Description

Convert numeric entries which large/infinite (absolute) values in a data.frame or task. Only numeric/integer columns are affected.

Usage

capLargeValues(
  obj,
  target = character(0L),
  cols = NULL,
  threshold = Inf,
  impute = threshold,
  what = "abs"
)

Arguments

`obj`	(data.frame \| Task) Input data.
`target`	(character) Name of the column(s) specifying the response. Target columns will not be capped. Default is `character(0)`.
`cols`	(character) Which columns to convert. Default is all numeric columns.
`threshold`	(`numeric(1)`) Threshold for capping. Every entry whose absolute value is equal or larger is converted. Default is `Inf`.
`impute`	(`numeric(1)`) Replacement value for large entries. Large negative entries are converted to `-impute`. Default is `threshold`.
`what`	(`character(1)`) What kind of entries are affected? “abs” means `abs(x) > threshold`, “pos” means `abs(x) > threshold && x > 0`, “neg” means `abs(x) > threshold && x < 0`. Default is “abs”.

Value

(data.frame)

Examples

capLargeValues(iris, threshold = 5, impute = 5)

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