updatequeue.html

数据挖掘的最常用工具。由于开源

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<A NAME="UpdateQueue()"><!-- --></A><H3>
UpdateQueue</H3>
<PRE>
public <B>UpdateQueue</B>()</PRE>
<DL>
<DD>Creates a new PriorityQueue (backed on a binary heap) with the ability to efficiently
 update the priority of the stored objects in the heap. The ascending (!) queue is
 dynamically growing and shrinking.
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<A NAME="add(double, java.lang.Object, java.lang.String)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(double&nbsp;priority,
                java.lang.Object&nbsp;o,
                java.lang.String&nbsp;objectKey)</PRE>
<DL>
<DD>Adds a new Object to the queue
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<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>priority</CODE> - The priority associated with the object (in this case: the reachability-distance)<DD><CODE>objectKey</CODE> - The key for this object<DD><CODE>o</CODE> - </DL>
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<A NAME="getPriority(int)"><!-- --></A><H3>
getPriority</H3>
<PRE>
public double <B>getPriority</B>(int&nbsp;index)</PRE>
<DL>
<DD>Returns the priority for the object at the specified index
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<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - the index of the object
<DT><B>Returns:</B><DD>priority</DL>
</DD>
</DL>
<HR>

<A NAME="size()"><!-- --></A><H3>
size</H3>
<PRE>
public int <B>size</B>()</PRE>
<DL>
<DD>Returns the queue's size
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>size</DL>
</DD>
</DL>
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<A NAME="hasNext()"><!-- --></A><H3>
hasNext</H3>
<PRE>
public boolean <B>hasNext</B>()</PRE>
<DL>
<DD>Tests, if the queue has some more elements left
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<DD><DL>
</DL>
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<DD><DL>

<DT><B>Returns:</B><DD>true, if there are any elements left, else false</DL>
</DD>
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<A NAME="next()"><!-- --></A><H3>
next</H3>
<PRE>
public <A HREF="../../../../weka/clusterers/forOPTICSAndDBScan/Utils/UpdateQueueElement.html" title="class in weka.clusterers.forOPTICSAndDBScan.Utils">UpdateQueueElement</A> <B>next</B>()</PRE>
<DL>
<DD>Returns the element with the lowest priority
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>next element</DL>
</DD>
</DL>
<HR>

<A NAME="getRevision()"><!-- --></A><H3>
getRevision</H3>
<PRE>
public java.lang.String <B>getRevision</B>()</PRE>
<DL>
<DD>Returns the revision string.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../weka/core/RevisionHandler.html#getRevision()">getRevision</A></CODE> in interface <CODE><A HREF="../../../../weka/core/RevisionHandler.html" title="interface in weka.core">RevisionHandler</A></CODE></DL>
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<DT><B>Returns:</B><DD>the revision</DL>
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