reimpute

(<a rd-options="" href="/link/data.frame?package=mlr&version=2.19.0" data-mini-rdoc="mlr::data.frame">data.frame</a> | <a rd-options="" href="/link/Task?package=mlr&version=2.19.0" data-mini-rdoc="mlr::Task">Task</a>)
Input data.

(<code>ImputationDesc</code>)
Imputation description as returned by <a rd-options="" href="/link/impute?package=mlr&version=2.19.0" data-mini-rdoc="mlr::impute">impute</a>.

desc

This function accepts a data frame or a task and an imputation description
as returned by impute to perform the following actions:<ol>
<li>Restore dropped columns, setting them to <code>NA</code></li>
<li>Add dummy variables for columns as specified in <code>impute</code></li>
<li>Optionally check factors for new levels to treat them as <code>NA</code>s</li>
<li>Reorder factor levels to ensure identical integer representation as
before</li>
<li>Impute missing values using previously collected data</li>
</ol>

Interface to a large number of classification and
regression techniques, including machine-readable parameter
descriptions. There is also an experimental extension for survival
analysis, clustering and general, example-specific cost-sensitive
learning. Generic resampling, including cross-validation,
bootstrapping and subsampling.  Hyperparameter tuning with modern
optimization techniques, for single- and multi-objective problems.
Filter and wrapper methods for feature selection. Extension of basic
learners with additional operations common in machine learning, also
allowing for easy nested resampling.  Most operations can be
parallelized.

Patrick Schratz

Machine Learning in R

Bernd Bischl

Michel Lang

Lars Kotthoff

Julia Schiffner

Jakob Richter

Zachary Jones

Giuseppe Casalicchio

Mason Gallo

Jakob Bossek

Erich Studerus

Leonard Judt

Tobias Kuehn

Pascal Kerschke

Florian Fendt

Philipp Probst

Xudong Sun

Janek Thomas

Bruno Vieira

Laura Beggel

Quay Au

Martin Binder

Florian Pfisterer

Stefan Coors

Steve Bronder

Alexander Engelhardt

Christoph Molnar

Annette Spooner

reimpute function

<dl><dt>obj</dt>
<dd>(<a href="/link/data.frame?package=mlr&version=2.19.0" data-mini-rdoc="mlr::data.frame">data.frame</a> | Task) 
Input data.</dd>
<dt>desc</dt>
<dd>(<code>ImputationDesc</code>) 
Imputation description as returned by impute.</dd></dl>

Arguments

Re-impute a data set — reimpute

<dl>

<dt>obj</dt>
<dd>(<a href='https://rdrr.io/r/base/data.frame.html'>data.frame</a> | Task) 
Input data.</dd>


<dt>desc</dt>
<dd>(<code>ImputationDesc</code>) 
Imputation description as returned by impute.</dd>

</dl>

Re-impute a data set

reimpute: Re-impute a data set

Description

Usage

Value

Arguments

See Also