reimpute

(<a rd-options="" href="/link/data.frame?package=mlr&version=2.12.1" data-mini-rdoc="mlr::data.frame">data.frame</a> | <a rd-options="" href="/link/Task?package=mlr&version=2.12.1" 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=2.12.1" data-mini-rdoc="mlr::impute">impute</a>.

desc

This function accepts a data frame or a task and an imputation description
as returned by <a rd-options="" href="/link/impute?package=mlr&version=2.12.1" data-mini-rdoc="mlr::impute">impute</a> 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.

Bernd Bischl

Machine Learning in R

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

Patrick Schratz

Steve Bronder

reimpute function

(<a rd-options='' href='data.frame'>data.frame</a> | <a rd-options='' href='Task'>Task</a>)
Input data.

(<code>ImputationDesc</code>)
Imputation description as returned by <a rd-options='' href='impute'>impute</a>.

This function accepts a data frame or a task and an imputation description
as returned by <a rd-options='' href='impute'>impute</a> 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>

Re-impute a data set — reimpute

Re-impute a data set

reimpute: Re-impute a data set

Description

Usage

Arguments

Value

See Also