the sum of the natural logs of the entries in the specified portion of
 the input array, or <code>Double.NaN</code> if the designated subarray
 is empty.</div>
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<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../../../../org/apache/commons/math3/stat/descriptive/summary/SumOfLogs.html#getN()">getN</a></strong>()</code>
<div class="block">Returns the number of values that have been added.</div>
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