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<h4>getN</h4>
<pre>public&nbsp;long&nbsp;getN()</pre>
<div class="block">Returns the number of observations that have been added to the model.</div>
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<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/stat/regression/UpdatingMultipleLinearRegression.html#getN()">getN</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/commons/math3/stat/regression/UpdatingMultipleLinearRegression.htm