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<a href="pyspark-module.html">Package pyspark</a> ::
<a href="pyspark.accumulators-module.html">Module accumulators</a> ::
Class AccumulatorParam
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<!-- ==================== CLASS DESCRIPTION ==================== -->
<h1 class="epydoc">Class AccumulatorParam</h1><p class="nomargin-top"><span class="codelink"><a href="pyspark.accumulators-pysrc.html#AccumulatorParam">source code</a></span></p>
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object --+
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<strong class="uidshort">AccumulatorParam</strong>
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<p>Helper object that defines how to accumulate values of a given
type.</p>
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<td><span class="summary-sig"><a name="zero"></a><span class="summary-sig-name">zero</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">value</span>)</span><br />
Provide a "zero value" for the type, compatible in
dimensions with the provided <code>value</code> (e.g., a zero vector)</td>
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<td><span class="summary-sig"><a name="addInPlace"></a><span class="summary-sig-name">addInPlace</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">value1</span>,
<span class="summary-sig-arg">value2</span>)</span><br />
Add two values of the accumulator's data type, returning a new value;
for efficiency, can also update <code>value1</code> in place and
return it.</td>
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