📄 sparsevector.html
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<PRE>
public <B>SparseVector</B>()</PRE>
<DL>
<DD>create empty vector
<P>
</DL>
<HR>
<A NAME="SparseVector(int)"><!-- --></A><H3>
SparseVector</H3>
<PRE>
public <B>SparseVector</B>(int i)</PRE>
<DL>
<DD>create empty vector with length
<P>
</DL>
<HR>
<A NAME="SparseVector(double[])"><!-- --></A><H3>
SparseVector</H3>
<PRE>
public <B>SparseVector</B>(double[] x)</PRE>
<DL>
<DD>create vector from dense vector
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - </DL>
</DL>
<HR>
<A NAME="SparseVector(net.sf.javaml.clustering.mcl.SparseVector)"><!-- --></A><H3>
SparseVector</H3>
<PRE>
public <B>SparseVector</B>(<A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseVector.html" title="class in net.sf.javaml.clustering.mcl">SparseVector</A> v)</PRE>
<DL>
<DD>copy constructor
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>v</CODE> - </DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
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<B>Method Detail</B></FONT></TH>
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<A NAME="get(java.lang.Object)"><!-- --></A><H3>
get</H3>
<PRE>
public java.lang.Double <B>get</B>(java.lang.Object key)</PRE>
<DL>
<DD>get ensures it returns 0 for empty hash values or if index exceeds length.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>get</CODE> in interface <CODE>java.util.Map<java.lang.Integer,java.lang.Double></CODE><DT><B>Overrides:</B><DD><CODE>get</CODE> in class <CODE>java.util.HashMap<java.lang.Integer,java.lang.Double></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> -
<DT><B>Returns:</B><DD>val</DL>
</DD>
</DL>
<HR>
<A NAME="put(java.lang.Integer, java.lang.Double)"><!-- --></A><H3>
put</H3>
<PRE>
public java.lang.Double <B>put</B>(java.lang.Integer key,
java.lang.Double value)</PRE>
<DL>
<DD>put increases the matrix size if the index exceeds the current size.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>put</CODE> in interface <CODE>java.util.Map<java.lang.Integer,java.lang.Double></CODE><DT><B>Overrides:</B><DD><CODE>put</CODE> in class <CODE>java.util.HashMap<java.lang.Integer,java.lang.Double></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - <DD><CODE>value</CODE> -
<DT><B>Returns:</B><DD></DL>
</DD>
</DL>
<HR>
<A NAME="normalise()"><!-- --></A><H3>
normalise</H3>
<PRE>
public void <B>normalise</B>()</PRE>
<DL>
<DD>normalises the vector to 1.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="normalise(double)"><!-- --></A><H3>
normalise</H3>
<PRE>
public double <B>normalise</B>(double newsum)</PRE>
<DL>
<DD>normalises the vector to newsum
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>the</CODE> - value to which the element sum
<DT><B>Returns:</B><DD>the old element sum</DL>
</DD>
</DL>
<HR>
<A NAME="sum(double)"><!-- --></A><H3>
sum</H3>
<PRE>
public double <B>sum</B>(double s)</PRE>
<DL>
<DD>power sum of the elements
<P>
<DD><DL>
<DT><B>Returns:</B><DD></DL>
</DD>
</DL>
<HR>
<A NAME="add(net.sf.javaml.clustering.mcl.SparseVector)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(<A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseVector.html" title="class in net.sf.javaml.clustering.mcl">SparseVector</A> v)</PRE>
<DL>
<DD>mutable add
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>v</CODE> - </DL>
</DD>
</DL>
<HR>
<A NAME="mult(int, double)"><!-- --></A><H3>
mult</H3>
<PRE>
public void <B>mult</B>(int i,
double a)</PRE>
<DL>
<DD>mutable mult
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>i</CODE> - index<DD><CODE>a</CODE> - value</DL>
</DD>
</DL>
<HR>
<A NAME="factor(double)"><!-- --></A><H3>
factor</H3>
<PRE>
public void <B>factor</B>(double a)</PRE>
<DL>
<DD>mutable factorisation
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>a</CODE> - </DL>
</DD>
</DL>
<HR>
<A NAME="times(net.sf.javaml.clustering.mcl.SparseVector)"><!-- --></A><H3>
times</H3>
<PRE>
public double <B>times</B>(<A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseVector.html" title="class in net.sf.javaml.clustering.mcl">SparseVector</A> v)</PRE>
<DL>
<DD>immutable scalar product
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>v</CODE> -
<DT><B>Returns:</B><DD>scalar product</DL>
</DD>
</DL>
<HR>
<A NAME="hadamardProduct(net.sf.javaml.clustering.mcl.SparseVector)"><!-- --></A><H3>
hadamardProduct</H3>
<PRE>
public void <B>hadamardProduct</B>(<A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseVector.html" title="class in net.sf.javaml.clustering.mcl">SparseVector</A> v)</PRE>
<DL>
<DD>mutable Hadamard product (elementwise multiplication)
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>v</CODE> - </DL>
</DD>
</DL>
<HR>
<A NAME="hadamardPower(double)"><!-- --></A><H3>
hadamardPower</H3>
<PRE>
public void <B>hadamardPower</B>(double s)</PRE>
<DL>
<DD>mutable Hadamard power
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>s</CODE> - </DL>
</DD>
</DL>
<HR>
<A NAME="add(int, double)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(int i,
double a)</PRE>
<DL>
<DD>mutable add
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>i</CODE> - <DD><CODE>a</CODE> - </DL>
</DD>
</DL>
<HR>
<A NAME="getLength()"><!-- --></A><H3>
getLength</H3>
<PRE>
public final int <B>getLength</B>()</PRE>
<DL>
<DD>get the length of the vector
<P>
<DD><DL>
<DT><B>Returns:</B><DD></DL>
</DD>
</DL>
<HR>
<A NAME="setLength(int)"><!-- --></A><H3>
setLength</H3>
<PRE>
public final void <B>setLength</B>(int length)</PRE>
<DL>
<DD>set the new length of the vector (regardless of the maximum index).
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>length</CODE> - </DL>
</DD>
</DL>
<HR>
<A NAME="copy()"><!-- --></A><H3>
copy</H3>
<PRE>
public <A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseVector.html" title="class in net.sf.javaml.clustering.mcl">SparseVector</A> <B>copy</B>()</PRE>
<DL>
<DD>copy the contents of the sparse vector
<P>
<DD><DL>
<DT><B>Returns:</B><DD></DL>
</DD>
</DL>
<HR>
<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.util.AbstractMap<java.lang.Integer,java.lang.Double></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="toStringDense()"><!-- --></A><H3>
toStringDense</H3>
<PRE>
public java.lang.String <B>toStringDense</B>()</PRE>
<DL>
<DD>create string representation of dense equivalent.
<P>
<DD><DL>
<DT><B>Returns:</B><DD></DL>
</DD>
</DL>
<HR>
<A NAME="getDense()"><!-- --></A><H3>
getDense</H3>
<PRE>
public double[] <B>getDense</B>()</PRE>
<DL>
<DD>get dense represenation
<P>
<DD><DL>
<DT><B>Returns:</B><DD></DL>
</DD>
</DL>
<HR>
<A NAME="max()"><!-- --></A><H3>
max</H3>
<PRE>
public double <B>max</B>()</PRE>
<DL>
<DD>maximum element value
<P>
<DD><DL>
<DT><B>Returns:</B><DD></DL>
</DD>
</DL>
<HR>
<A NAME="expSum(int)"><!-- --></A><H3>
expSum</H3>
<PRE>
public double <B>expSum</B>(int p)</PRE>
<DL>
<DD>exponential sum, i.e., sum (elements^p)
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>p</CODE> -
<DT><B>Returns:</B><DD></DL>
</DD>
</DL>
<HR>
<A NAME="prune(double)"><!-- --></A><H3>
prune</H3>
<PRE>
public void <B>prune</B>(double threshold)</PRE>
<DL>
<DD>remove all elements whose magnitude is < threshold
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>threshold</CODE> - </DL>
</DD>
</DL>
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