Matrix</h4>
<pre>public&nbsp;double&nbsp;getDiagonalOfHatMatrix(double[]&nbsp;row_data)</pre>
<div class="block">Gets the diagonal of the Hat matrix also known as the leverage matrix.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>row_data</code> - returns the diagonal of the hat matrix for this observation</dd>
<dt><span class="strong">Returns:</span></dt><dd>the diagonal element of the hatmatrix</dd></dl>
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