nges and data</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the new <code>FederationMap</code></dd>
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<h4>filter</h4>
<pre class="methodSignature">public&nbsp;<a href="FederationMap.html" title="class in org.apache.sysds.runtime.controlprogram.federated">FederationMap</a>&nbsp;filter&#8203;(<a href="../../util/IndexRange.html" title="class in org.apache.sysds.