ass="block">sets the structure for the relational class attribute</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - the structure for the relational attribute</dd></dl>
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<h4>getRelationalClassFormat</h4>
<pre>public&nbsp;<a href="../../weka/core/Instances.html" title="class in weka.core">Instances</a>&nbsp;getRelationalClassFormat()</pre>
<div class="block">returns 