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| <h1>Create ArrayStreams from batches</h1> |
| <small class="dont-index">Source: <a href="https://github.com/apache/arrow-nanoarrow/blob/main/r/R/array-stream.R" class="external-link"><code>R/array-stream.R</code></a></small> |
| <div class="d-none name"><code>basic_array_stream.Rd</code></div> |
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| <div class="ref-description section level2"> |
| <p>Create ArrayStreams from batches</p> |
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| <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">basic_array_stream</span><span class="op">(</span><span class="va">batches</span>, schema <span class="op">=</span> <span class="cn">NULL</span>, validate <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span></code></pre></div> |
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| <div class="section level2"> |
| <h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2> |
| |
| |
| <dl><dt id="arg-batches">batches<a class="anchor" aria-label="anchor" href="#arg-batches"></a></dt> |
| <dd><p>A <code><a href="https://rdrr.io/r/base/list.html" class="external-link">list()</a></code> of <a href="as_nanoarrow_array.html">nanoarrow_array</a> objects |
| or objects that can be coerced via <code><a href="as_nanoarrow_array.html">as_nanoarrow_array()</a></code>.</p></dd> |
| |
| |
| <dt id="arg-schema">schema<a class="anchor" aria-label="anchor" href="#arg-schema"></a></dt> |
| <dd><p>A <a href="as_nanoarrow_schema.html">nanoarrow_schema</a> or <code>NULL</code> to guess |
| based on the first schema.</p></dd> |
| |
| |
| <dt id="arg-validate">validate<a class="anchor" aria-label="anchor" href="#arg-validate"></a></dt> |
| <dd><p>Use <code>FALSE</code> to skip the validation step (i.e., if you |
| know that the arrays are valid).</p></dd> |
| |
| </dl></div> |
| <div class="section level2"> |
| <h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2> |
| <p>An <a href="as_nanoarrow_array_stream.html">nanoarrow_array_stream</a></p> |
| </div> |
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| <div class="section level2"> |
| <h2 id="ref-examples">Examples<a class="anchor" aria-label="anchor" href="#ref-examples"></a></h2> |
| <div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span><span class="op">(</span><span class="va">stream</span> <span class="op"><-</span> <span class="fu">basic_array_stream</span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/data.frame.html" class="external-link">data.frame</a></span><span class="op">(</span>a <span class="op">=</span> <span class="fl">1</span>, b <span class="op">=</span> <span class="fl">2</span><span class="op">)</span><span class="op">)</span><span class="op">)</span><span class="op">)</span></span></span> |
| <span class="r-out co"><span class="r-pr">#></span> <nanoarrow_array_stream struct<a: double, b: double>></span> |
| <span class="r-out co"><span class="r-pr">#></span> $ get_schema:function () </span> |
| <span class="r-out co"><span class="r-pr">#></span> $ get_next :function (schema = x$get_schema(), validate = TRUE) </span> |
| <span class="r-out co"><span class="r-pr">#></span> $ release :function () </span> |
| <span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/base/as.data.frame.html" class="external-link">as.data.frame</a></span><span class="op">(</span><span class="va">stream</span><span class="op">$</span><span class="fu">get_next</span><span class="op">(</span><span class="op">)</span><span class="op">)</span></span></span> |
| <span class="r-out co"><span class="r-pr">#></span> a b</span> |
| <span class="r-out co"><span class="r-pr">#></span> 1 1 2</span> |
| <span class="r-in"><span><span class="va">stream</span><span class="op">$</span><span class="fu">get_next</span><span class="op">(</span><span class="op">)</span></span></span> |
| <span class="r-out co"><span class="r-pr">#></span> NULL</span> |
| <span class="r-in"><span></span></span> |
| </code></pre></div> |
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