auto_convert

Set of rules to automatically convert column types.
This is used during <code>rbind</code>-ing of Tasks, but also in some pipe operators in
<a href="https://CRAN.R-project.org/package=mlr3pipelines">mlr3pipelines</a>.
All rules are stored as functions in mlr_reflections$auto_converters.

internal

Efficient, object-oriented programming on the
building blocks of machine learning. Provides 'R6' objects for tasks,
learners, resamplings, and measures. The package is geared towards
scalability and larger datasets by supporting parallelization and
out-of-memory data-backends like databases. While 'mlr3' focuses on
the core computational operations, add-on packages provide additional
functionality.

Marc Becker

mlr3

Machine Learning in R - Next Generation

Michel Lang

Bernd Bischl

Jakob Richter

Patrick Schratz

Giuseppe Casalicchio

Stefan Coors

Quay Au

Martin Binder

Florian Pfisterer

Raphael Sonabend

Lennart Schneider

Sebastian Fischer

Lona Koers

John Zobolas

auto_convert function

<dl><dt>value</dt>
<dd>(any) 
New values to convert in order to match <code>type</code>.</dd>
<dt>id</dt>
<dd>(<code>character(1)</code>) 
Name of the column, used in error messages.</dd>
<dt>type</dt>
<dd>(<code>character(1)</code>) 
Type to convert <code>values</code> to.</dd>
<dt>levels</dt>
<dd>(<code><a href="/link/character()?package=mlr3&version=0.23.0" data-mini-rdoc="mlr3::character()">character()</a></code> | <code>NULL</code>) 
Levels to use for conversion to <code>factor</code> or <code>ordered</code>.</dd></dl>

Arguments

Set of rules to automatically convert column types.
This is used during <code>rbind</code>-ing of Tasks, but also in some pipe operators in
<a href='https://CRAN.R-project.org/package=mlr3pipelines'>mlr3pipelines</a>.
All rules are stored as functions in mlr_reflections$auto_converters.

Column Auto-Converter — auto_convert

<dl>

<dt>value</dt>
<dd>(any) 
New values to convert in order to match <code>type</code>.</dd>


<dt>id</dt>
<dd>(<code>character(1)</code>) 
Name of the column, used in error messages.</dd>


<dt>type</dt>
<dd>(<code>character(1)</code>) 
Type to convert <code>values</code> to.</dd>


<dt>levels</dt>
<dd>(<code><a href='https://rdrr.io/r/base/character.html'>character()</a></code> | <code>NULL</code>) 
Levels to use for conversion to <code>factor</code> or <code>ordered</code>.</dd>

</dl>

Column Auto-Converter

auto_convert: Column Auto-Converter

Description

Usage

Value

Arguments