tidyselect_data_proxy

tidyselect_data_has_predicates

<ul>
<li><code>tidyselect_data_proxy()</code> returns a data frame.</li>
<li><code>tidyselect_data_has_predicates()</code> returns <code>TRUE</code> or <code>FALSE</code></li>
</ul>If your doesn't support predicate functions, return a 0-row data frame
from <code>tidyselect_data_proxy()</code> and <code>FALSE</code> from
<code>tidyselect_data_has_predicates()</code>.

A backend for the selecting functions of the 'tidyverse'.  It
makes it easy to implement select-like functions in your own packages
in a way that is consistent with other 'tidyverse' interfaces for
selection.

Lionel Henry

tidyselect

Select from a Set of Strings

Hadley Wickham

Posit Software, PBC 

tidyselect_data_proxy function

<dl><dt>x</dt>
<dd>A data-frame like object passed to <code>eval_select()</code>,
<code>eval_rename()</code>, and friends.</dd></dl>

Arguments

<ul>
<li><code>tidyselect_data_proxy()</code> returns a data frame.</li>
<li><code>tidyselect_data_has_predicates()</code> returns <code>TRUE</code> or <code>FALSE</code></li>
</ul>

If your doesn't support predicate functions, return a 0-row data frame
from <code>tidyselect_data_proxy()</code> and <code>FALSE</code> from
<code>tidyselect_data_has_predicates()</code>.

tidyselect methods for custom types — tidyselect_data_proxy

<dl>

<dt>x</dt>
<dd>A data-frame like object passed to <code>eval_select()</code>,
<code>eval_rename()</code>, and friends.</dd>

</dl>

tidyselect_data_proxy: tidyselect methods for custom types

Description

Usage

Arguments