mlr3: auto_convert – R documentation

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auto_convert

Column Auto-Converter

Description

Set of rules to automatically convert column types. This is used during rbind-ing of Tasks, but also in some pipe operators in mlr3pipelines.

All rules are stored as functions in mlr_reflections$auto_converters.

Usage

auto_convert(value, id, type, levels)

Arguments

`value`	(`any`) New values to convert in order to match `type`.
`id`	(`character(1)`) Name of the column, used in error messages.
`type`	(`character(1)`) Type to convert `values` to.
`levels`	(`character()` \| `NULL`) Levels to use for conversion to `factor` or `ordered`.

Value

Vector value converted to type type.

mlr3

Machine Learning in R - Next Generation

v0.11.0

LGPL-3

Authors

Michel Lang [cre, aut] (<https://orcid.org/0000-0001-9754-0393>), Bernd Bischl [aut] (<https://orcid.org/0000-0001-6002-6980>), Jakob Richter [aut] (<https://orcid.org/0000-0003-4481-5554>), Patrick Schratz [aut] (<https://orcid.org/0000-0003-0748-6624>), Giuseppe Casalicchio [ctb] (<https://orcid.org/0000-0001-5324-5966>), Stefan Coors [ctb] (<https://orcid.org/0000-0002-7465-2146>), Quay Au [ctb] (<https://orcid.org/0000-0002-5252-8902>), Martin Binder [aut], Marc Becker [ctb] (<https://orcid.org/0000-0002-8115-0400>)

Initial release