as_sqlite_backend

(<code>data.frame()</code> | <a rd-options="mlr3:DataBackend" href="/link/mlr3%3A%3ADataBackend?package=mlr3db&version=0.1.3&to=mlr3%3ADataBackend" data-mini-rdoc="mlr3:DataBackend::mlr3::DataBackend">mlr3::DataBackend</a> | <a rd-options="mlr3:Task" href="/link/mlr3%3A%3ATask?package=mlr3db&version=0.1.3&to=mlr3%3ATask" data-mini-rdoc="mlr3:Task::mlr3::Task">mlr3::Task</a>)
See description.

data

(<code>NULL</code> | <code>character(1)</code>)
Path for the SQLite data base. Defaults to a file in the temporary directory of the R session, see <code><a rd-options="=tempfile" href="/link/tempfile()?package=mlr3db&version=0.1.3&to=%3Dtempfile" data-mini-rdoc="=tempfile::tempfile()">tempfile()</a></code>.

path

(<code>any</code>)
Additional arguments, currently ignored.

Converts to a <a rd-options="" href="/link/DataBackendDplyr?package=mlr3db&version=0.1.3" data-mini-rdoc="mlr3db::DataBackendDplyr">DataBackendDplyr</a> using a RSQLite data base, depending on the input type:<ul>
<li><code>data.frame</code>: Converts to a <a rd-options="" href="/link/DataBackendDplyr?package=mlr3db&version=0.1.3" data-mini-rdoc="mlr3db::DataBackendDplyr">DataBackendDplyr</a>.</li>
<li><code>[mlr3::DataBackend]</code>: Creates a new <a rd-options="" href="/link/DataBackendDplyr?package=mlr3db&version=0.1.3" data-mini-rdoc="mlr3db::DataBackendDplyr">DataBackendDplyr</a> using the data of the provided <a rd-options="mlr3:DataBackend" href="/link/mlr3%3A%3ADataBackend?package=mlr3db&version=0.1.3&to=mlr3%3ADataBackend" data-mini-rdoc="mlr3:DataBackend::mlr3::DataBackend">mlr3::DataBackend</a>.</li>
<li><code>[mlr3::Task]</code>: Replaces the <a rd-options="" href="/link/DataBackend?package=mlr3db&version=0.1.3" data-mini-rdoc="mlr3db::DataBackend">DataBackend</a> in slot <code>$task</code> with a new backend. Only active columns and
rows are considered.</li>
</ul>

Extends the 'mlr3' package with a backend to
transparently work with data bases. Internally relies on the
abstraction of package 'dbplyr' to interact with one of the many
supported data base management systems (DBMS).

Michel Lang

mlr3db

Data Base Backend for 'mlr3'

as_sqlite_backend function

(<code>data.frame()</code> | <a rd-options='mlr3:DataBackend' href='mlr3::DataBackend'>mlr3::DataBackend</a> | <a rd-options='mlr3:Task' href='mlr3::Task'>mlr3::Task</a>)
See description.

(<code>NULL</code> | <code>character(1)</code>)
Path for the SQLite data base. Defaults to a file in the temporary directory of the R session, see <code><a rd-options='=tempfile' href='tempfile()'>tempfile()</a></code>.

Converts to a <a rd-options='' href='DataBackendDplyr'>DataBackendDplyr</a> using a RSQLite data base, depending on the input type:<ul>
<li><code>data.frame</code>: Converts to a <a rd-options='' href='DataBackendDplyr'>DataBackendDplyr</a>.</li>
<li><code>[mlr3::DataBackend]</code>: Creates a new <a rd-options='' href='DataBackendDplyr'>DataBackendDplyr</a> using the data of the provided <a rd-options='mlr3:DataBackend' href='mlr3::DataBackend'>mlr3::DataBackend</a>.</li>
<li><code>[mlr3::Task]</code>: Replaces the <a rd-options='' href='DataBackend'>DataBackend</a> in slot <code>$task</code> with a new backend. Only active columns and
rows are considered.</li>
</ul>

as_sqlite_backend: Convert to use a SQLite Backend

Description

Usage

Arguments

Value