      double[]&nbsp;y2,
                 int&nbsp;n)</pre>
<div class="block">Returns the correlation coefficient of two double vectors.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>y1</code> - double vector 1</dd><dd><code>y2</code> - double vector 2</dd><dd><code>n</code> - the length of two double vectors</dd>
<dt><span class="strong">Returns:</span></dt><dd>the correlation coefficient</dd></dl>
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