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<div class="subTitle">org.apache.mahout.math</div>
<h2 title="Interface Matrix" class="title">Interface Matrix</h2>
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<dt>All Superinterfaces:</dt>
<dd><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Cloneable.html?is-external=true" title="class or interface in java.lang">Cloneable</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</a>&lt;<a href="../../../../org/apache/mahout/math/MatrixSlice.html" title="class in org.apache.mahout.math">MatrixSlice</a>&gt;, <a href="../../../../org/apache/mahout/math/VectorIterable.html" title="interface in org.apache.mahout.math">VectorIterable</a></dd>
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<dl>
<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../org/apache/mahout/math/AbstractMatrix.html" title="class in org.apache.mahout.math">AbstractMatrix</a>, <a href="../../../../org/apache/mahout/math/DenseMatrix.html" title="class in org.apache.mahout.math">DenseMatrix</a>, <a href="../../../../org/apache/mahout/math/DenseSymmetricMatrix.html" title="class in org.apache.mahout.math">DenseSymmetricMatrix</a>, <a href="../../../../org/apache/mahout/math/DiagonalMatrix.html" title="class in org.apache.mahout.math">DiagonalMatrix</a>, <a href="../../../../org/apache/mahout/math/FileBasedMatrix.html" title="class in org.apache.mahout.math">FileBasedMatrix</a>, <a href="../../../../org/apache/mahout/math/FileBasedSparseBinaryMatrix.html" title="class in org.apache.mahout.math">FileBasedSparseBinaryMatrix</a>, <a href="../../../../org/apache/mahout/math/MatrixView.html" title="class in org.apache.mahout.math">MatrixView</a>, <a href="../../../../org/apache/mahout/math/PivotedMatrix.html" title="class in org.apache.mahout.math">PivotedMatrix</a>, <a href="../../../../org/apache/mahout/math/RandomTrinaryMatrix.html" title="class in org.apache.mahout.math">RandomTrinaryMatrix</a>, <a href="../../../../org/apache/mahout/math/SparseColumnMatrix.html" title="class in org.apache.mahout.math">SparseColumnMatrix</a>, <a href="../../../../org/apache/mahout/math/SparseMatrix.html" title="class in org.apache.mahout.math">SparseMatrix</a>, <a href="../../../../org/apache/mahout/math/SparseRowMatrix.html" title="class in org.apache.mahout.math">SparseRowMatrix</a>, <a href="../../../../org/apache/mahout/math/TransposedMatrixView.html" title="class in org.apache.mahout.math">TransposedMatrixView</a>, <a href="../../../../org/apache/mahout/math/UpperTriangular.html" title="class in org.apache.mahout.math">UpperTriangular</a></dd>
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<pre>public interface <span class="typeNameLabel">Matrix</span>
extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Cloneable.html?is-external=true" title="class or interface in java.lang">Cloneable</a>, <a href="../../../../org/apache/mahout/math/VectorIterable.html" title="interface in org.apache.mahout.math">VectorIterable</a></pre>
<div class="block">The basic interface including numerous convenience functions</div>
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<h3>Method Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#aggregate-org.apache.mahout.math.function.DoubleDoubleFunction-org.apache.mahout.math.function.DoubleFunction-">aggregate</a></span>(<a href="../../../../org/apache/mahout/math/function/DoubleDoubleFunction.html" title="class in org.apache.mahout.math.function">DoubleDoubleFunction</a>&nbsp;combiner,
<a href="../../../../org/apache/mahout/math/function/DoubleFunction.html" title="class in org.apache.mahout.math.function">DoubleFunction</a>&nbsp;mapper)</code>
<div class="block">Collects the results of a function applied to each element of a matrix and then
aggregated.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#aggregateColumns-org.apache.mahout.math.function.VectorFunction-">aggregateColumns</a></span>(<a href="../../../../org/apache/mahout/math/function/VectorFunction.html" title="interface in org.apache.mahout.math.function">VectorFunction</a>&nbsp;f)</code>
<div class="block">Collects the results of a function applied to each column of a matrix.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#aggregateRows-org.apache.mahout.math.function.VectorFunction-">aggregateRows</a></span>(<a href="../../../../org/apache/mahout/math/function/VectorFunction.html" title="interface in org.apache.mahout.math.function">VectorFunction</a>&nbsp;f)</code>
<div class="block">Collects the results of a function applied to each row of a matrix.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#asFormatString--">asFormatString</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#assign-double-">assign</a></span>(double&nbsp;value)</code>
<div class="block">Assign the value to all elements of the receiver</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#assign-double:A:A-">assign</a></span>(double[][]&nbsp;values)</code>
<div class="block">Assign the values to the receiver</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#assign-org.apache.mahout.math.function.DoubleFunction-">assign</a></span>(<a href="../../../../org/apache/mahout/math/function/DoubleFunction.html" title="class in org.apache.mahout.math.function">DoubleFunction</a>&nbsp;function)</code>
<div class="block">Apply the function to each element of the receiver</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#assign-org.apache.mahout.math.Matrix-">assign</a></span>(<a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;other)</code>
<div class="block">Assign the other vector values to the receiver</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#assign-org.apache.mahout.math.Matrix-org.apache.mahout.math.function.DoubleDoubleFunction-">assign</a></span>(<a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;other,
<a href="../../../../org/apache/mahout/math/function/DoubleDoubleFunction.html" title="class in org.apache.mahout.math.function">DoubleDoubleFunction</a>&nbsp;function)</code>
<div class="block">Apply the function to each element of the receiver and the corresponding element of the other argument</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#assignColumn-int-org.apache.mahout.math.Vector-">assignColumn</a></span>(int&nbsp;column,
<a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a>&nbsp;other)</code>
<div class="block">Assign the other vector values to the column of the receiver</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#assignRow-int-org.apache.mahout.math.Vector-">assignRow</a></span>(int&nbsp;row,
<a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a>&nbsp;other)</code>
<div class="block">Assign the other vector values to the row of the receiver</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#clone--">clone</a></span>()</code>
<div class="block">Return a copy of the recipient</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#columnSize--">columnSize</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#determinant--">determinant</a></span>()</code>
<div class="block">Returns matrix determinator using Laplace theorem</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#divide-double-">divide</a></span>(double&nbsp;x)</code>
<div class="block">Return a new matrix containing the values of the recipient divided by the argument</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#get-int-int-">get</a></span>(int&nbsp;row,
int&nbsp;column)</code>
<div class="block">Return the value at the given indexes</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#get-java.lang.String-java.lang.String-">get</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;rowLabel,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;columnLabel)</code>
<div class="block">Return the value at the given labels</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#getColumnLabelBindings--">getColumnLabelBindings</a></span>()</code>
<div class="block">Return a map of the current column label bindings of the receiver</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/flavor/MatrixFlavor.html" title="interface in org.apache.mahout.math.flavor">MatrixFlavor</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#getFlavor--">getFlavor</a></span>()</code>
<div class="block">Get matrix structural flavor (operations performance hints).</div>
</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>int[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#getNumNondefaultElements--">getNumNondefaultElements</a></span>()</code>
<div class="block">Return the number of values in the recipient</div>
</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#getQuick-int-int-">getQuick</a></span>(int&nbsp;row,
int&nbsp;column)</code>
<div class="block">Return the value at the given indexes, without checking bounds</div>
</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#getRowLabelBindings--">getRowLabelBindings</a></span>()</code>
<div class="block">Return a map of the current row label bindings of the receiver</div>
</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#like--">like</a></span>()</code>
<div class="block">Return an empty matrix of the same underlying class as the receiver</div>
</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#like-int-int-">like</a></span>(int&nbsp;rows,
int&nbsp;columns)</code>
<div class="block">Returns an empty matrix of the same underlying class as the receiver and of the specified size.</div>
</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#minus-org.apache.mahout.math.Matrix-">minus</a></span>(<a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;x)</code>
<div class="block">Return a new matrix containing the element by element difference of the recipient and the argument</div>
</td>
</tr>
<tr id="i25" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#plus-double-">plus</a></span>(double&nbsp;x)</code>
<div class="block">Return a new matrix containing the sum of each value of the recipient and the argument</div>
</td>
</tr>
<tr id="i26" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#plus-org.apache.mahout.math.Matrix-">plus</a></span>(<a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;x)</code>
<div class="block">Return a new matrix containing the element by element sum of the recipient and the argument</div>
</td>
</tr>
<tr id="i27" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#rowSize--">rowSize</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i28" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#set-int-double:A-">set</a></span>(int&nbsp;row,
double[]&nbsp;data)</code>&nbsp;</td>
</tr>
<tr id="i29" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#set-int-int-double-">set</a></span>(int&nbsp;row,
int&nbsp;column,
double&nbsp;value)</code>
<div class="block">Set the value at the given index</div>
</td>
</tr>
<tr id="i30" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#set-java.lang.String-double:A-">set</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;rowLabel,
double[]&nbsp;rowData)</code>
<div class="block">Sets the row values at the given row label</div>
</td>
</tr>
<tr id="i31" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#set-java.lang.String-int-double:A-">set</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;rowLabel,
int&nbsp;row,
double[]&nbsp;rowData)</code>
<div class="block">Sets the row values at the given row index and updates the row labels</div>
</td>
</tr>
<tr id="i32" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#set-java.lang.String-java.lang.String-double-">set</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;rowLabel,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;columnLabel,
double&nbsp;value)</code>
<div class="block">Set the value at the given index</div>
</td>
</tr>
<tr id="i33" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#set-java.lang.String-java.lang.String-int-int-double-">set</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;rowLabel,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;columnLabel,
int&nbsp;row,
int&nbsp;column,
double&nbsp;value)</code>
<div class="block">Set the value at the given index, updating the row and column label bindings</div>
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<tr id="i34" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#setColumnLabelBindings-java.util.Map-">setColumnLabelBindings</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;bindings)</code>
<div class="block">Sets a map of column label bindings in the receiver</div>
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<tr id="i35" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#setQuick-int-int-double-">setQuick</a></span>(int&nbsp;row,
int&nbsp;column,
double&nbsp;value)</code>
<div class="block">Set the value at the given index, without checking bounds</div>
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<tr id="i36" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#setRowLabelBindings-java.util.Map-">setRowLabelBindings</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;bindings)</code>
<div class="block">Sets a map of row label bindings in the receiver</div>
</td>
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<tr id="i37" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#times-double-">times</a></span>(double&nbsp;x)</code>
<div class="block">Return a new matrix containing the product of each value of the recipient and the argument</div>
</td>
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<tr id="i38" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
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<div class="block">Return a new matrix containing the product of the recipient and the argument</div>
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<tr id="i39" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
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<div class="block">Return a new matrix that is the transpose of the receiver</div>
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<tr id="i40" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a></code></td>
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<tr id="i41" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a></code></td>
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<div class="block">Returns a reference to the diagonal of a matrix.</div>
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<tr id="i42" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
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<tr id="i43" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#viewPart-int-int-int-int-">viewPart</a></span>(int&nbsp;rowOffset,
int&nbsp;rowsRequested,
int&nbsp;columnOffset,
int&nbsp;columnsRequested)</code>
<div class="block">Return a view into part of a matrix.</div>
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<tr id="i44" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a></code></td>
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<div class="block">Return a reference to a row.</div>
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<tr id="i45" class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/Matrix.html#zSum--">zSum</a></span>()</code>
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<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Iterable.html?is-external=true#forEach-java.util.function.Consumer-" title="class or interface in java.lang">forEach</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Iterable.html?is-external=true#iterator--" title="class or interface in java.lang">iterator</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Iterable.html?is-external=true#spliterator--" title="class or interface in java.lang">spliterator</a></code></li>
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<pre><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;asFormatString()</pre>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>a formatted String suitable for output</dd>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;assign(double&nbsp;value)</pre>
<div class="block">Assign the value to all elements of the receiver</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>value</code> - a double value</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the modified receiver</dd>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;assign(double[][]&nbsp;values)</pre>
<div class="block">Assign the values to the receiver</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>values</code> - a double[] of values</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the modified receiver</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/mahout/math/CardinalityException.html" title="class in org.apache.mahout.math">CardinalityException</a></code> - if the cardinalities differ</dd>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;assign(<a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;other)</pre>
<div class="block">Assign the other vector values to the receiver</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>other</code> - a Matrix</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the modified receiver</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/mahout/math/CardinalityException.html" title="class in org.apache.mahout.math">CardinalityException</a></code> - if the cardinalities differ</dd>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;assign(<a href="../../../../org/apache/mahout/math/function/DoubleFunction.html" title="class in org.apache.mahout.math.function">DoubleFunction</a>&nbsp;function)</pre>
<div class="block">Apply the function to each element of the receiver</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>function</code> - a DoubleFunction to apply</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the modified receiver</dd>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;assign(<a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;other,
<a href="../../../../org/apache/mahout/math/function/DoubleDoubleFunction.html" title="class in org.apache.mahout.math.function">DoubleDoubleFunction</a>&nbsp;function)</pre>
<div class="block">Apply the function to each element of the receiver and the corresponding element of the other argument</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>other</code> - a Matrix containing the second arguments to the function</dd>
<dd><code>function</code> - a DoubleDoubleFunction to apply</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the modified receiver</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/mahout/math/CardinalityException.html" title="class in org.apache.mahout.math">CardinalityException</a></code> - if the cardinalities differ</dd>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;assignColumn(int&nbsp;column,
<a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a>&nbsp;other)</pre>
<div class="block">Assign the other vector values to the column of the receiver</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>column</code> - the int row to assign</dd>
<dd><code>other</code> - a Vector</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the modified receiver</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/mahout/math/CardinalityException.html" title="class in org.apache.mahout.math">CardinalityException</a></code> - if the cardinalities differ</dd>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;assignRow(int&nbsp;row,
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<div class="block">Assign the other vector values to the row of the receiver</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>row</code> - the int row to assign</dd>
<dd><code>other</code> - a Vector</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the modified receiver</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/mahout/math/CardinalityException.html" title="class in org.apache.mahout.math">CardinalityException</a></code> - if the cardinalities differ</dd>
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<pre><a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a>&nbsp;aggregateRows(<a href="../../../../org/apache/mahout/math/function/VectorFunction.html" title="interface in org.apache.mahout.math.function">VectorFunction</a>&nbsp;f)</pre>
<div class="block">Collects the results of a function applied to each row of a matrix.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>f</code> - The function to be applied to each row.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The vector of results.</dd>
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<pre><a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a>&nbsp;aggregateColumns(<a href="../../../../org/apache/mahout/math/function/VectorFunction.html" title="interface in org.apache.mahout.math.function">VectorFunction</a>&nbsp;f)</pre>
<div class="block">Collects the results of a function applied to each column of a matrix.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>f</code> - The function to be applied to each column.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The vector of results.</dd>
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<pre>double&nbsp;aggregate(<a href="../../../../org/apache/mahout/math/function/DoubleDoubleFunction.html" title="class in org.apache.mahout.math.function">DoubleDoubleFunction</a>&nbsp;combiner,
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<div class="block">Collects the results of a function applied to each element of a matrix and then
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<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>combiner</code> - A function that combines the results of the mapper.</dd>
<dd><code>mapper</code> - A function to apply to each element.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The result.</dd>
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<pre>int&nbsp;columnSize()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The number of rows in the matrix.</dd>
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<pre>int&nbsp;rowSize()</pre>
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<dt><span class="returnLabel">Returns:</span></dt>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;clone()</pre>
<div class="block">Return a copy of the recipient</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>a new Matrix</dd>
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<pre>double&nbsp;determinant()</pre>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;divide(double&nbsp;x)</pre>
<div class="block">Return a new matrix containing the values of the recipient divided by the argument</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>x</code> - a double value</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a new Matrix</dd>
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<div class="block">Return the value at the given indexes</div>
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<dd><code>row</code> - an int row index</dd>
<dd><code>column</code> - an int column index</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the double at the index</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/mahout/math/IndexException.html" title="class in org.apache.mahout.math">IndexException</a></code> - if the index is out of bounds</dd>
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<dd><code>row</code> - an int row index</dd>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;like()</pre>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;like(int&nbsp;rows,
int&nbsp;columns)</pre>
<div class="block">Returns an empty matrix of the same underlying class as the receiver and of the specified size.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rows</code> - the int number of rows</dd>
<dd><code>columns</code> - the int number of columns</dd>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;minus(<a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;x)</pre>
<div class="block">Return a new matrix containing the element by element difference of the recipient and the argument</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>x</code> - a Matrix</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a new Matrix</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/mahout/math/CardinalityException.html" title="class in org.apache.mahout.math">CardinalityException</a></code> - if the cardinalities differ</dd>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;plus(double&nbsp;x)</pre>
<div class="block">Return a new matrix containing the sum of each value of the recipient and the argument</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>x</code> - a double</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a new Matrix</dd>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;plus(<a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;x)</pre>
<div class="block">Return a new matrix containing the element by element sum of the recipient and the argument</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>x</code> - a Matrix</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a new Matrix</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/mahout/math/CardinalityException.html" title="class in org.apache.mahout.math">CardinalityException</a></code> - if the cardinalities differ</dd>
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<h4>set</h4>
<pre>void&nbsp;set(int&nbsp;row,
int&nbsp;column,
double&nbsp;value)</pre>
<div class="block">Set the value at the given index</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>row</code> - an int row index into the receiver</dd>
<dd><code>column</code> - an int column index into the receiver</dd>
<dd><code>value</code> - a double value to set</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/mahout/math/IndexException.html" title="class in org.apache.mahout.math">IndexException</a></code> - if the index is out of bounds</dd>
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<pre>void&nbsp;set(int&nbsp;row,
double[]&nbsp;data)</pre>
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<pre>void&nbsp;setQuick(int&nbsp;row,
int&nbsp;column,
double&nbsp;value)</pre>
<div class="block">Set the value at the given index, without checking bounds</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>row</code> - an int row index into the receiver</dd>
<dd><code>column</code> - an int column index into the receiver</dd>
<dd><code>value</code> - a double value to set</dd>
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<pre>int[]&nbsp;getNumNondefaultElements()</pre>
<div class="block">Return the number of values in the recipient</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>an int[2] containing [row, column] count</dd>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;times(double&nbsp;x)</pre>
<div class="block">Return a new matrix containing the product of each value of the recipient and the argument</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>x</code> - a double argument</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a new Matrix</dd>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;times(<a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;x)</pre>
<div class="block">Return a new matrix containing the product of the recipient and the argument</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>x</code> - a Matrix argument</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a new Matrix</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/mahout/math/CardinalityException.html" title="class in org.apache.mahout.math">CardinalityException</a></code> - if the cardinalities are incompatible</dd>
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<h4>transpose</h4>
<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;transpose()</pre>
<div class="block">Return a new matrix that is the transpose of the receiver</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the transpose</dd>
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<pre>double&nbsp;zSum()</pre>
<div class="block">Return the sum of all the elements of the receiver</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a double</dd>
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<a name="getColumnLabelBindings--">
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<h4>getColumnLabelBindings</h4>
<pre><a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;getColumnLabelBindings()</pre>
<div class="block">Return a map of the current column label bindings of the receiver</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a <code>Map&lt;String, Integer&gt;</code></dd>
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<a name="getRowLabelBindings--">
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<h4>getRowLabelBindings</h4>
<pre><a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;getRowLabelBindings()</pre>
<div class="block">Return a map of the current row label bindings of the receiver</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a <code>Map&lt;String, Integer&gt;</code></dd>
</dl>
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</ul>
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<pre>void&nbsp;setColumnLabelBindings(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;bindings)</pre>
<div class="block">Sets a map of column label bindings in the receiver</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>bindings</code> - a <code>Map&lt;String, Integer&gt;</code> of label bindings</dd>
</dl>
</li>
</ul>
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<pre>void&nbsp;setRowLabelBindings(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;bindings)</pre>
<div class="block">Sets a map of row label bindings in the receiver</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>bindings</code> - a <code>Map&lt;String, Integer&gt;</code> of label bindings</dd>
</dl>
</li>
</ul>
<a name="get-java.lang.String-java.lang.String-">
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<h4>get</h4>
<pre>double&nbsp;get(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;rowLabel,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;columnLabel)</pre>
<div class="block">Return the value at the given labels</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rowLabel</code> - a String row label</dd>
<dd><code>columnLabel</code> - a String column label</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the double at the index</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/mahout/math/IndexException.html" title="class in org.apache.mahout.math">IndexException</a></code> - if the index is out of bounds</dd>
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<h4>set</h4>
<pre>void&nbsp;set(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;rowLabel,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;columnLabel,
double&nbsp;value)</pre>
<div class="block">Set the value at the given index</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rowLabel</code> - a String row label</dd>
<dd><code>columnLabel</code> - a String column label</dd>
<dd><code>value</code> - a double value to set</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/mahout/math/IndexException.html" title="class in org.apache.mahout.math">IndexException</a></code> - if the index is out of bounds</dd>
</dl>
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<h4>set</h4>
<pre>void&nbsp;set(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;rowLabel,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;columnLabel,
int&nbsp;row,
int&nbsp;column,
double&nbsp;value)</pre>
<div class="block">Set the value at the given index, updating the row and column label bindings</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rowLabel</code> - a String row label</dd>
<dd><code>columnLabel</code> - a String column label</dd>
<dd><code>row</code> - an int row index</dd>
<dd><code>column</code> - an int column index</dd>
<dd><code>value</code> - a double value</dd>
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<h4>set</h4>
<pre>void&nbsp;set(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;rowLabel,
double[]&nbsp;rowData)</pre>
<div class="block">Sets the row values at the given row label</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rowLabel</code> - a String row label</dd>
<dd><code>rowData</code> - a double[] array of row data</dd>
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<pre>void&nbsp;set(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;rowLabel,
int&nbsp;row,
double[]&nbsp;rowData)</pre>
<div class="block">Sets the row values at the given row index and updates the row labels</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rowLabel</code> - the String row label</dd>
<dd><code>row</code> - an int the row index</dd>
<dd><code>rowData</code> - a double[] array of row data</dd>
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<h4>viewPart</h4>
<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;viewPart(int[]&nbsp;offset,
int[]&nbsp;size)</pre>
<div class="block">Return a view into part of a matrix. Changes to the view will change the
original matrix.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>offset</code> - an int[2] offset into the receiver</dd>
<dd><code>size</code> - the int[2] size of the desired result</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a matrix that shares storage with part of the original matrix.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/mahout/math/CardinalityException.html" title="class in org.apache.mahout.math">CardinalityException</a></code> - if the length is greater than the cardinality of the receiver</dd>
<dd><code><a href="../../../../org/apache/mahout/math/IndexException.html" title="class in org.apache.mahout.math">IndexException</a></code> - if the offset is negative or the offset+length is outside of the receiver</dd>
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<pre><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a>&nbsp;viewPart(int&nbsp;rowOffset,
int&nbsp;rowsRequested,
int&nbsp;columnOffset,
int&nbsp;columnsRequested)</pre>
<div class="block">Return a view into part of a matrix. Changes to the view will change the
original matrix.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rowOffset</code> - The first row of the view</dd>
<dd><code>rowsRequested</code> - The number of rows in the view</dd>
<dd><code>columnOffset</code> - The first column in the view</dd>
<dd><code>columnsRequested</code> - The number of columns in the view</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a matrix that shares storage with part of the original matrix.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/mahout/math/CardinalityException.html" title="class in org.apache.mahout.math">CardinalityException</a></code> - if the length is greater than the cardinality of the receiver</dd>
<dd><code><a href="../../../../org/apache/mahout/math/IndexException.html" title="class in org.apache.mahout.math">IndexException</a></code> - if the offset is negative or the offset+length is outside of the
receiver</dd>
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<h4>viewRow</h4>
<pre><a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a>&nbsp;viewRow(int&nbsp;row)</pre>
<div class="block">Return a reference to a row. Changes to the view will change the original matrix.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>row</code> - The index of the row to return.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A vector that shares storage with the original.</dd>
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<pre><a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a>&nbsp;viewColumn(int&nbsp;column)</pre>
<div class="block">Return a reference to a column. Changes to the view will change the original matrix.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>column</code> - The index of the column to return.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A vector that shares storage with the original.</dd>
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<pre><a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a>&nbsp;viewDiagonal()</pre>
<div class="block">Returns a reference to the diagonal of a matrix. Changes to the view will change
the original matrix.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A vector that shares storage with the original matrix.</dd>
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<h4>getFlavor</h4>
<pre><a href="../../../../org/apache/mahout/math/flavor/MatrixFlavor.html" title="interface in org.apache.mahout.math.flavor">MatrixFlavor</a>&nbsp;getFlavor()</pre>
<div class="block">Get matrix structural flavor (operations performance hints). This is optional operation, may
throw <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/UnsupportedOperationException.html?is-external=true" title="class or interface in java.lang"><code>UnsupportedOperationException</code></a>.</div>
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