nearestneighboursearch.html

weka是机器学习和数据挖掘领域最有影响力的开源项目之一

<A NAME="nearestNeighbour(weka.core.Instance)"><!-- --></A><H3>
nearestNeighbour</H3>
<PRE>
public abstract <A HREF="../../weka/core/Instance.html" title="class in weka.core">Instance</A> <B>nearestNeighbour</B>(<A HREF="../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;target)
                                   throws java.lang.Exception</PRE>
<DL>
<DD>Returns the nearest instance in the current neighbourhood to the supplied
  instance.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>target</CODE> - The instance to find the nearest neighbour for.
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the nearest neighbour could not be 
              found.</DL>
</DD>
</DL>
<HR>

<A NAME="kNearestNeighbours(weka.core.Instance, int)"><!-- --></A><H3>
kNearestNeighbours</H3>
<PRE>
public abstract <A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A> <B>kNearestNeighbours</B>(<A HREF="../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;target,
                                             int&nbsp;k)
                                      throws java.lang.Exception</PRE>
<DL>
<DD>Returns k nearest instances in the current neighbourhood to the supplied
  instance.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>target</CODE> - The instance to find the k nearest neighbours for.<DD><CODE>k</CODE> - The number of nearest neighbours to find.
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if the neighbours could not be found.</DL>
</DD>
</DL>
<HR>

<A NAME="getDistances()"><!-- --></A><H3>
getDistances</H3>
<PRE>
public abstract double[] <B>getDistances</B>()
                               throws java.lang.Exception</PRE>
<DL>
<DD>Returns the distances of the k nearest neighbours. The kNearestNeighbours
  or nearestNeighbour needs to be called first for this to work.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if called before calling kNearestNeighbours
            or nearestNeighbours.</DL>
</DD>
</DL>
<HR>

<A NAME="update(weka.core.Instance)"><!-- --></A><H3>
update</H3>
<PRE>
public abstract void <B>update</B>(<A HREF="../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;ins)
                     throws java.lang.Exception</PRE>
<DL>
<DD>Updates the NearNeighbourSearch algorithm for the new added instance.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="addInstanceInfo(weka.core.Instance)"><!-- --></A><H3>
addInstanceInfo</H3>
<PRE>
public void <B>addInstanceInfo</B>(<A HREF="../../weka/core/Instance.html" title="class in weka.core">Instance</A>&nbsp;ins)</PRE>
<DL>
<DD>Adds information from the given instance without modifying the 
 datastructures a lot
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="setInstances(weka.core.Instances)"><!-- --></A><H3>
setInstances</H3>
<PRE>
public void <B>setInstances</B>(<A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A>&nbsp;insts)
                  throws java.lang.Exception</PRE>
<DL>
<DD>Sets the instances
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getInstances()"><!-- --></A><H3>
getInstances</H3>
<PRE>
public <A HREF="../../weka/core/Instances.html" title="class in weka.core">Instances</A> <B>getInstances</B>()</PRE>
<DL>
<DD>returns the instances currently set
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="distanceFunctionTipText()"><!-- --></A><H3>
distanceFunctionTipText</H3>
<PRE>
public java.lang.String <B>distanceFunctionTipText</B>()</PRE>
<DL>
<DD>Tip text for the property
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getDistanceFunction()"><!-- --></A><H3>
getDistanceFunction</H3>
<PRE>
public <A HREF="../../weka/core/DistanceFunction.html" title="interface in weka.core">DistanceFunction</A> <B>getDistanceFunction</B>()</PRE>
<DL>
<DD>returns the distance function currently in use
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="setDistanceFunction(weka.core.DistanceFunction)"><!-- --></A><H3>
setDistanceFunction</H3>
<PRE>
public void <B>setDistanceFunction</B>(<A HREF="../../weka/core/DistanceFunction.html" title="interface in weka.core">DistanceFunction</A>&nbsp;df)
                         throws java.lang.Exception</PRE>
<DL>
<DD>sets the  distance function to use for nearest neighbour search
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="listOptions()"><!-- --></A><H3>
listOptions</H3>
<PRE>
public java.util.Enumeration <B>listOptions</B>()</PRE>
<DL>
<DD>Returns an enumeration describing the available options.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>an enumeration of all the available options.</DL>
</DD>
</DL>
<HR>

<A NAME="setOptions(java.lang.String[])"><!-- --></A><H3>
setOptions</H3>
<PRE>
public void <B>setOptions</B>(java.lang.String[]&nbsp;options)
                throws java.lang.Exception</PRE>
<DL>
<DD>Parses a given list of options. Valid options are:<p>
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>options</CODE> - the list of options as an array of strings
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - if an option is not supported</DL>
</DD>
</DL>
<HR>

<A NAME="getOptions()"><!-- --></A><H3>
getOptions</H3>
<PRE>
public java.lang.String[] <B>getOptions</B>()</PRE>
<DL>
<DD>Gets the current settings of IBk.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>an array of strings suitable for passing to setOptions()</DL>
</DD>
</DL>
<HR>

<A NAME="combSort11(double[], int[])"><!-- --></A><H3>
combSort11</H3>
<PRE>
public static void <B>combSort11</B>(double[]&nbsp;arrayToSort,
                              int[]&nbsp;linkedArray)</PRE>
<DL>
<DD>sorts the two given arrays.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>arrayToSort</CODE> - The array sorting should be based on.<DD><CODE>linkedArray</CODE> - The array that should have the same ordering as 
 arrayToSort.</DL>
</DD>
</DL>
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