commons/math3/stat/regression/SimpleRegression.html" title="class in org.apache.commons.math3.stat.regression">SimpleRegression</a>&nbsp;reg)</pre>
<div class="block">Appends data from another regression calculation to this one.

 <p>The mean update formulae are based on a paper written by Philippe
 P&eacute;bay:
 <a
 href="http://prod.sandia.gov/techlib/access-control.cgi/2008/086212.pdf">
 Formulas for Robust, One-Pass Parallel Computation of Covariances and
 Arbitrary-Order Statistical Moments</a>, 2008,