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SparseMatrix (Java Machine Learning Library 0.0.11)
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net.sf.javaml.clustering.mcl</FONT>
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Class SparseMatrix</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by ">java.util.AbstractCollection<E>
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by ">java.util.AbstractList<E>
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by ">java.util.ArrayList<<A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseVector.html" title="class in net.sf.javaml.clustering.mcl">SparseVector</A>>
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>net.sf.javaml.clustering.mcl.SparseMatrix</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD>java.io.Serializable, java.lang.Cloneable, java.lang.Iterable<<A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseVector.html" title="class in net.sf.javaml.clustering.mcl">SparseVector</A>>, java.util.Collection<<A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseVector.html" title="class in net.sf.javaml.clustering.mcl">SparseVector</A>>, java.util.List<<A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseVector.html" title="class in net.sf.javaml.clustering.mcl">SparseVector</A>>, java.util.RandomAccess</DD>
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<DT><PRE>public class <B>SparseMatrix</B><DT>extends java.util.ArrayList<<A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseVector.html" title="class in net.sf.javaml.clustering.mcl">SparseVector</A>></DL>
</PRE>
<P>
SparseMatrix is a sparse matrix with row-major format. <p> Conventions: except for the inherited methods and normalise(double), operations leave <tt>this</tt> ummodified (immutable) if there is a return value. Within operations, no pruning of values close to zero is done. Pruning can be controlled via the prune() method.
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD>gregor :: arbylon . net</DD>
<DT><B>See Also:</B><DD><A HREF="../../../../../serialized-form.html#net.sf.javaml.clustering.mcl.SparseMatrix">Serialized Form</A></DL>
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<TD><CODE>modCount</CODE></TD>
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<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#SparseMatrix()">SparseMatrix</A></B>()</CODE>
<BR>
empty sparse matrix</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#SparseMatrix(double[][])">SparseMatrix</A></B>(double[][] x)</CODE>
<BR>
create sparse matrix from full matrix</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#SparseMatrix(int, int)">SparseMatrix</A></B>(int rows,
int cols)</CODE>
<BR>
empty sparse matrix with allocated number of rows</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#SparseMatrix(net.sf.javaml.clustering.mcl.SparseMatrix)">SparseMatrix</A></B>(<A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html" title="class in net.sf.javaml.clustering.mcl">SparseMatrix</A> matrix)</CODE>
<BR>
copy contructor</TD>
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<CODE> double</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#add(int, int, double)">add</A></B>(int i,
int j,
double a)</CODE>
<BR>
adds a to the specified element, growing the matrix if necessary.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#adjustMaxIndex(int, int)">adjustMaxIndex</A></B>(int i,
int j)</CODE>
<BR>
adjusts the size of the matrix.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html" title="class in net.sf.javaml.clustering.mcl">SparseMatrix</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#copy()">copy</A></B>()</CODE>
<BR>
copy the matrix and its elements</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> double</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#get(int, int)">get</A></B>(int i,
int j)</CODE>
<BR>
get number at index or 0. if not set.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseVector.html" title="class in net.sf.javaml.clustering.mcl">SparseVector</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#getColum(int)">getColum</A></B>(int i)</CODE>
<BR>
get a column of the sparse matrix (expensive).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> double[][]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#getDense()">getDense</A></B>()</CODE>
<BR>
create dense representation</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#getSize()">getSize</A></B>()</CODE>
<BR>
get the size of the matrix</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#hadamardPower(double)">hadamardPower</A></B>(double s)</CODE>
<BR>
mutable m2 = m .^ s</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#hadamardProduct(net.sf.javaml.clustering.mcl.SparseMatrix)">hadamardProduct</A></B>(<A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html" title="class in net.sf.javaml.clustering.mcl">SparseMatrix</A> m)</CODE>
<BR>
mutable Hadamard product</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html" title="class in net.sf.javaml.clustering.mcl">SparseMatrix</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#matrixTimes(net.sf.javaml.clustering.mcl.SparseMatrix)">matrixTimes</A></B>(<A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html" title="class in net.sf.javaml.clustering.mcl">SparseMatrix</A> m)</CODE>
<BR>
immutable multiply matrix M with this (A) : M * A</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseVector.html" title="class in net.sf.javaml.clustering.mcl">SparseVector</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#normalise(double)">normalise</A></B>(double rowsum)</CODE>
<BR>
normalise rows to rowsum</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#normaliseCols()">normaliseCols</A></B>()</CODE>
<BR>
normalise by minor dimension (columns), expensive.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/javaml/clustering/mcl/SparseMatrix.html#normaliseRows()">normaliseRows</A></B>()</CODE>
<BR>
normalise by major dimension (rows)</TD>
</TR>
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