register_namespace_callback

Register a function <code>callback</code> to be called after a namespace is loaded.
Calls <code>callback</code> once if the namespace has already been loaded before and
also adds an unload-hook that removes the load hook.

Frequently used helper functions and assertions used in
'mlr3' and its companion packages. Comes with helper functions for
functional programming, for printing, to work with 'data.table', as
well as some generally useful 'R6' classes. This package also
supersedes the package 'BBmisc'.

Marc Becker

mlr3misc

Helper Functions for 'mlr3'

Michel Lang

Patrick Schratz

register_namespace_callback function

<dl><dt>pkgname</dt>
<dd>(<code>character(1)</code>) 
Name of the package which registers the callback.</dd>
<dt>namespace</dt>
<dd>(<code>character(1)</code>) 
Namespace to react on.</dd>
<dt>callback</dt>
<dd>(<code>function()</code>) 
Function to call on namespace load.
The callback is invoked without arguments, so it can be defined as <code>function()</code> or <code>function(...)</code>.
Any arguments passed by the hook caller (e.g. <code>package</code> and <code>lib_path</code> from <code>pkgload</code>) are discarded.</dd></dl>

Arguments

Registers a Callback on Namespace load/unLoad Events — register_namespace_callback

<dl>

<dt>pkgname</dt>
<dd>(<code>character(1)</code>) 
Name of the package which registers the callback.</dd>


<dt>namespace</dt>
<dd>(<code>character(1)</code>) 
Namespace to react on.</dd>


<dt>callback</dt>
<dd>(<code>function()</code>) 
Function to call on namespace load.
The callback is invoked without arguments, so it can be defined as <code>function()</code> or <code>function(...)</code>.
Any arguments passed by the hook caller (e.g. <code>package</code> and <code>lib_path</code> from <code>pkgload</code>) are discarded.</dd>

</dl>

register_namespace_callback: Registers a Callback on Namespace load/unLoad Events

Description

Usage

Value

Arguments