read_arff

Parses a file located at <code>path</code> and returns a <code>data.table()</code>.
Limitations:<ul>
<li>Only works for dense files, no support for sparse data.
Use <a href="https://CRAN.R-project.org/package=RWeka">RWeka</a> instead.</li>
<li>Dates (even if there is no time component) are read in as <a href="/link/POSIXct?package=mlr3oml&version=0.9.0" data-mini-rdoc="mlr3oml::POSIXct">POSIXct</a>.</li>
<li>The <code>date-format</code> from the ARFF specification is currently ignored.
Instead, we rely on the auto-detection of <a href="https://CRAN.R-project.org/package=data.table">data.table</a>'s <code>fread()</code>..</li>
</ul>

Provides an interface to 'OpenML.org' to list and download
machine learning data, tasks and experiments. The 'OpenML' objects can
be automatically converted to 'mlr3' objects.  For a more
sophisticated interface with more upload options, see
the 'OpenML' package.

Sebastian Fischer

mlr3oml

Connector Between 'mlr3' and 'OpenML'

Michel Lang

read_arff function

<dl><dt>path</dt>
<dd>(<code>character(1)</code>) 
Path or URI of the ARFF file, passed to <code><a href="/link/file()?package=mlr3oml&version=0.9.0" data-mini-rdoc="mlr3oml::file()">file()</a></code>.</dd></dl>

Arguments

Parses a file located at <code>path</code> and returns a <code>data.table()</code>.
Limitations:<ul>
<li>Only works for dense files, no support for sparse data.
Use <a href='https://CRAN.R-project.org/package=RWeka'>RWeka</a> instead.</li>
<li>Dates (even if there is no time component) are read in as <a href='https://rdrr.io/r/base/DateTimeClasses.html'>POSIXct</a>.</li>
<li>The <code>date-format</code> from the ARFF specification is currently ignored.
Instead, we rely on the auto-detection of <a href='https://CRAN.R-project.org/package=data.table'>data.table</a>'s <code>fread()</code>..</li>
</ul>

Read ARFF files — read_arff

<dl>

<dt>path</dt>
<dd>(<code>character(1)</code>) 
Path or URI of the ARFF file, passed to <code><a href='https://rdrr.io/r/base/connections.html'>file()</a></code>.</dd>

</dl>

read_arff: Read ARFF files

Description

Usage

Value

Arguments