main/r/reference/infer_nanoarrow_ptype_extension.html - arrow-nanoarrow - Git at Google

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 <!-- Generated by pkgdown: do not edit by hand --><html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><title>Implement Arrow extension types — infer_nanoarrow_ptype_extension • nanoarrow</title><script src="../deps/jquery-3.6.0/jquery-3.6.0.min.js"></script><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><link href="../deps/bootstrap-5.3.1/bootstrap.min.css" rel="stylesheet"><script src="../deps/bootstrap-5.3.1/bootstrap.bundle.min.js"></script><link href="../deps/font-awesome-6.4.2/css/all.min.css" rel="stylesheet"><link href="../deps/font-awesome-6.4.2/css/v4-shims.min.css" rel="stylesheet"><script src="../deps/headroom-0.11.0/headroom.min.js"></script><script src="../deps/headroom-0.11.0/jQuery.headroom.min.js"></script><script src="../deps/bootstrap-toc-1.0.1/bootstrap-toc.min.js"></script><script src="../deps/clipboard.js-2.0.11/clipboard.min.js"></script><script src="../deps/search-1.0.0/autocomplete.jquery.min.js"></script><script src="../deps/search-1.0.0/fuse.min.js"></script><script src="../deps/search-1.0.0/mark.min.js"></script><!-- pkgdown --><script src="../pkgdown.js"></script><meta property="og:title" content="Implement Arrow extension types — infer_nanoarrow_ptype_extension"><meta name="description" content="Implement Arrow extension types"><meta property="og:description" content="Implement Arrow extension types"></head><body>
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       <h1>Implement Arrow extension types</h1>
       <small class="dont-index">Source: <a href="https://github.com/apache/arrow-nanoarrow/blob/main/r/R/extension.R" class="external-link"><code>R/extension.R</code></a></small>
       <div class="d-none name"><code>infer_nanoarrow_ptype_extension.Rd</code></div>
     </div>

     <div class="ref-description section level2">
     <p>Implement Arrow extension types</p>
     </div>

     <div class="section level2">
     <h2 id="ref-usage">Usage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
     <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">infer_nanoarrow_ptype_extension</span><span class="op">(</span></span>
 <span>  <span class="va">extension_spec</span>,</span>
 <span>  <span class="va">x</span>,</span>
 <span>  <span class="va">...</span>,</span>
 <span>  warn_unregistered <span class="op">=</span> <span class="cn">TRUE</span></span>
 <span><span class="op">)</span></span>
 <span></span>
 <span><span class="fu">convert_array_extension</span><span class="op">(</span></span>
 <span>  <span class="va">extension_spec</span>,</span>
 <span>  <span class="va">array</span>,</span>
 <span>  <span class="va">to</span>,</span>
 <span>  <span class="va">...</span>,</span>
 <span>  warn_unregistered <span class="op">=</span> <span class="cn">TRUE</span></span>
 <span><span class="op">)</span></span>
 <span></span>
 <span><span class="fu">as_nanoarrow_array_extension</span><span class="op">(</span><span class="va">extension_spec</span>, <span class="va">x</span>, <span class="va">...</span>, schema <span class="op">=</span> <span class="cn">NULL</span><span class="op">)</span></span></code></pre></div>
     </div>

     <div class="section level2">
     <h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>


 <dl><dt id="arg-extension-spec">extension_spec<a class="anchor" aria-label="anchor" href="#arg-extension-spec"></a></dt>
 <dd><p>An extension specification inheriting from
 'nanoarrow_extension_spec'.</p></dd>


 <dt id="arg-x-array-to-schema-">x, array, to, schema, ...<a class="anchor" aria-label="anchor" href="#arg-x-array-to-schema-"></a></dt>
 <dd><p>Passed from <code><a href="infer_nanoarrow_ptype.html">infer_nanoarrow_ptype()</a></code>,
 <code><a href="convert_array.html">convert_array()</a></code>, <code><a href="as_nanoarrow_array.html">as_nanoarrow_array()</a></code>, and/or
 <code><a href="as_nanoarrow_array_stream.html">as_nanoarrow_array_stream()</a></code>.</p></dd>


 <dt id="arg-warn-unregistered">warn_unregistered<a class="anchor" aria-label="anchor" href="#arg-warn-unregistered"></a></dt>
 <dd><p>Use <code>FALSE</code> to infer/convert based on the storage
 type without a warning.</p></dd>

 </dl></div>
     <div class="section level2">
     <h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>

 <ul><li><p><code>infer_nanoarrow_ptype_extension()</code>: The R vector prototype to be used
 as the default conversion target.</p></li>
 <li><p><code>convert_array_extension()</code>: An R vector of type <code>to</code>.</p></li>
 <li><p><code>as_nanoarrow_array_extension()</code>: A <a href="as_nanoarrow_array.html">nanoarrow_array</a>
 of type <code>schema</code>.</p></li>
 </ul></div>

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 </div>

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	<!DOCTYPE html>
	<!-- Generated by pkgdown: do not edit by hand --><html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><title>Implement Arrow extension types — infer_nanoarrow_ptype_extension • nanoarrow</title><script src="../deps/jquery-3.6.0/jquery-3.6.0.min.js"></script><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><link href="../deps/bootstrap-5.3.1/bootstrap.min.css" rel="stylesheet"><script src="../deps/bootstrap-5.3.1/bootstrap.bundle.min.js"></script><link href="../deps/font-awesome-6.4.2/css/all.min.css" rel="stylesheet"><link href="../deps/font-awesome-6.4.2/css/v4-shims.min.css" rel="stylesheet"><script src="../deps/headroom-0.11.0/headroom.min.js"></script><script src="../deps/headroom-0.11.0/jQuery.headroom.min.js"></script><script src="../deps/bootstrap-toc-1.0.1/bootstrap-toc.min.js"></script><script src="../deps/clipboard.js-2.0.11/clipboard.min.js"></script><script src="../deps/search-1.0.0/autocomplete.jquery.min.js"></script><script src="../deps/search-1.0.0/fuse.min.js"></script><script src="../deps/search-1.0.0/mark.min.js"></script><!-- pkgdown --><script src="../pkgdown.js"></script><meta property="og:title" content="Implement Arrow extension types — infer_nanoarrow_ptype_extension"><meta name="description" content="Implement Arrow extension types"><meta property="og:description" content="Implement Arrow extension types"></head><body>
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	</div>
	</nav><div class="container template-reference-topic">
	<div class="row">
	<main id="main" class="col-md-9"><div class="page-header">

	<h1>Implement Arrow extension types</h1>
	<small class="dont-index">Source: <a href="https://github.com/apache/arrow-nanoarrow/blob/main/r/R/extension.R" class="external-link"><code>R/extension.R</code></a></small>
	<div class="d-none name"><code>infer_nanoarrow_ptype_extension.Rd</code></div>
	</div>

	<div class="ref-description section level2">
	<p>Implement Arrow extension types</p>
	</div>

	<div class="section level2">
	<h2 id="ref-usage">Usage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
	<div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">infer_nanoarrow_ptype_extension</span><span class="op">(</span></span>
	<span> <span class="va">extension_spec</span>,</span>
	<span> <span class="va">x</span>,</span>
	<span> <span class="va">...</span>,</span>
	<span> warn_unregistered <span class="op">=</span> <span class="cn">TRUE</span></span>
	<span><span class="op">)</span></span>
	<span></span>
	<span><span class="fu">convert_array_extension</span><span class="op">(</span></span>
	<span> <span class="va">extension_spec</span>,</span>
	<span> <span class="va">array</span>,</span>
	<span> <span class="va">to</span>,</span>
	<span> <span class="va">...</span>,</span>
	<span> warn_unregistered <span class="op">=</span> <span class="cn">TRUE</span></span>
	<span><span class="op">)</span></span>
	<span></span>
	<span><span class="fu">as_nanoarrow_array_extension</span><span class="op">(</span><span class="va">extension_spec</span>, <span class="va">x</span>, <span class="va">...</span>, schema <span class="op">=</span> <span class="cn">NULL</span><span class="op">)</span></span></code></pre></div>
	</div>

	<div class="section level2">
	<h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>


	<dl><dt id="arg-extension-spec">extension_spec<a class="anchor" aria-label="anchor" href="#arg-extension-spec"></a></dt>
	<dd><p>An extension specification inheriting from
	'nanoarrow_extension_spec'.</p></dd>


	<dt id="arg-x-array-to-schema-">x, array, to, schema, ...<a class="anchor" aria-label="anchor" href="#arg-x-array-to-schema-"></a></dt>
	<dd><p>Passed from <code><a href="infer_nanoarrow_ptype.html">infer_nanoarrow_ptype()</a></code>,
	<code><a href="convert_array.html">convert_array()</a></code>, <code><a href="as_nanoarrow_array.html">as_nanoarrow_array()</a></code>, and/or
	<code><a href="as_nanoarrow_array_stream.html">as_nanoarrow_array_stream()</a></code>.</p></dd>


	<dt id="arg-warn-unregistered">warn_unregistered<a class="anchor" aria-label="anchor" href="#arg-warn-unregistered"></a></dt>
	<dd><p>Use <code>FALSE</code> to infer/convert based on the storage
	type without a warning.</p></dd>

	</dl></div>
	<div class="section level2">
	<h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>

	<ul><li><p><code>infer_nanoarrow_ptype_extension()</code>: The R vector prototype to be used
	as the default conversion target.</p></li>
	<li><p><code>convert_array_extension()</code>: An R vector of type <code>to</code>.</p></li>
	<li><p><code>as_nanoarrow_array_extension()</code>: A <a href="as_nanoarrow_array.html">nanoarrow_array</a>
	of type <code>schema</code>.</p></li>
	</ul></div>

	</main><aside class="col-md-3"><nav id="toc" aria-label="Table of contents"><h2>On this page</h2>
	</nav></aside></div>


	<footer><div class="pkgdown-footer-left">
	<p>Developed by Dewey Dunnington, Apache Arrow.</p>
	</div>

	<div class="pkgdown-footer-right">
	<p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.1.0.</p>
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