ionData.html" title="interface in org.apache.commons.math3.optim">OptimizationData</a></pre>
<div class="block">Weight matrix of the residuals between model and observations.
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 Immutable class.</div>
<dl><dt><span class="strong">Since:</span></dt>
  <dd>3.1</dd>
<dt><span class="strong">Version:</span></dt>
  <dd>$Id: Weight.java 1515242 2013-08-18 23:27:29Z erans $</dd></dl>
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