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<img src="" class="logo" alt=""><h1>checkpoint</h1>
<div class="d-none name"><code>checkpoint.Rd</code></div>
</div>
<div class="ref-description section level2">
<p>Returns a checkpointed version of this SparkDataFrame. Checkpointing can be used to truncate the
logical plan, which is especially useful in iterative algorithms where the plan may grow
exponentially. It will be saved to files inside the checkpoint directory set with
<code>setCheckpointDir</code></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">checkpoint</span><span class="op">(</span><span class="va">x</span>, eager <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span>
<span></span>
<span><span class="co"># S4 method for SparkDataFrame</span></span>
<span><span class="fu">checkpoint</span><span class="op">(</span><span class="va">x</span>, eager <span class="op">=</span> <span class="cn">TRUE</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>x</dt>
<dd><p>A SparkDataFrame</p></dd>
<dt>eager</dt>
<dd><p>whether to checkpoint this SparkDataFrame immediately</p></dd>
</dl></div>
<div class="section level2">
<h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>
<p>a new checkpointed SparkDataFrame</p>
</div>
<div class="section level2">
<h2 id="note">Note<a class="anchor" aria-label="anchor" href="#note"></a></h2>
<p>checkpoint since 2.2.0</p>
</div>
<div class="section level2">
<h2 id="see-also">See also<a class="anchor" aria-label="anchor" href="#see-also"></a></h2>
<div class="dont-index"><p><a href="setCheckpointDir.html">setCheckpointDir</a></p>
<p>Other SparkDataFrame functions:
<code><a href="SparkDataFrame.html">SparkDataFrame-class</a></code>,
<code><a href="summarize.html">agg</a>()</code>,
<code><a href="alias.html">alias</a>()</code>,
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<code><a href="as.data.frame.html">as.data.frame</a>()</code>,
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<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="kw">if</span> <span class="op">(</span><span class="cn">FALSE</span><span class="op">)</span> <span class="op">{</span></span></span>
<span class="r-in"><span><span class="fu"><a href="setCheckpointDir.html">setCheckpointDir</a></span><span class="op">(</span><span class="st">"/checkpoint"</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">df</span> <span class="op">&lt;-</span> <span class="fu">checkpoint</span><span class="op">(</span><span class="va">df</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="op">}</span></span></span>
</code></pre></div>
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