vec_is_list

vec_check_list

<a href="https://lifecycle.r-lib.org/articles/stages.html#deprecated"><img src="figures/lifecycle-deprecated.svg?package=vctrs&version=0.6.5" alt="[Deprecated]"></a>
These functions have been deprecated as of vctrs 0.6.0.<ul>
<li><code>vec_is_list()</code> has been renamed to <code>obj_is_list()</code>.</li>
<li><code>vec_check_list()</code> has been renamed to <code>obj_check_list()</code>.</li>
</ul>

internal

Defines new notions of prototype and size that are used to
provide tools for consistent and well-founded type-coercion and
size-recycling, and are in turn connected to ideas of type- and
size-stability useful for analysing function interfaces.

Davis Vaughan

vctrs

Vector Helpers

Hadley Wickham

Lionel Henry

data.table team 

Posit Software, PBC 

vec_is_list function

<dl><dt>x</dt>
<dd>For <code>vec_*()</code> functions, an object. For <code>list_*()</code> functions, a
list.</dd>
<dt>...</dt>
<dd>These dots are for future extensions and must be empty.</dd>
<dt>arg</dt>
<dd>An argument name as a string. This argument
will be mentioned in error messages as the input that is at the
origin of a problem.</dd>
<dt>call</dt>
<dd>The execution environment of a currently
running function, e.g. <code>caller_env()</code>. The function will be
mentioned in error messages as the source of the error. See the
<code>call</code> argument of <code><a href="https://rlang.r-lib.org/reference/abort.html">abort()</a></code> for more information.</dd></dl>

Arguments

<a href='https://lifecycle.r-lib.org/articles/stages.html#deprecated'><img src='figures/lifecycle-deprecated.svg' alt='[Deprecated]' /></a>
These functions have been deprecated as of vctrs 0.6.0.<ul>
<li><code>vec_is_list()</code> has been renamed to <code>obj_is_list()</code>.</li>
<li><code>vec_check_list()</code> has been renamed to <code>obj_check_list()</code>.</li>
</ul>

List checks — vec_is_list

<dl>

<dt>x</dt>
<dd>For <code>vec_*()</code> functions, an object. For <code>list_*()</code> functions, a
list.</dd>


<dt>...</dt>
<dd>These dots are for future extensions and must be empty.</dd>


<dt>arg</dt>
<dd>An argument name as a string. This argument
will be mentioned in error messages as the input that is at the
origin of a problem.</dd>


<dt>call</dt>
<dd>The execution environment of a currently
running function, e.g. <code>caller_env()</code>. The function will be
mentioned in error messages as the source of the error. See the
<code>call</code> argument of <code><a href='https://rlang.r-lib.org/reference/abort.html'>abort()</a></code> for more information.</dd>

</dl>

vec_is_list: List checks

Description

Usage

Arguments