 true
 a <code>NoDataException</code> is thrown.  If there is no intercept term, the model must
 contain at least 2 observations.</p></div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/stat/regression/UpdatingMultipleLinearRegression.html#regress()">regress</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/commons/math3/stat/regression/UpdatingMultipleLinearRegression.html" title="interface in org.apache.commons.math3.