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| <h2 title="Class RandomTrinaryMatrix" class="title">Class RandomTrinaryMatrix</h2> |
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| <li>org.apache.mahout.math.RandomTrinaryMatrix</li> |
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| <pre>public class <span class="typeNameLabel">RandomTrinaryMatrix</span> |
| extends <a href="../../../../org/apache/mahout/math/AbstractMatrix.html" title="class in org.apache.mahout.math">AbstractMatrix</a></pre> |
| <div class="block">Random matrix. Each value is taken from {-1,0,1} with roughly equal probability. Note |
| that by default, the value is determined by a relatively simple hash of the coordinates. |
| Such a hash is not usable where real randomness is required, but suffices nicely for |
| random projection methods. |
| |
| If the simple hash method is not satisfactory, an optional high quality mode is available |
| which uses a murmur hash of the coordinates.</div> |
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| <code><a href="../../../../org/apache/mahout/math/AbstractMatrix.TransposeViewVector.html" title="class in org.apache.mahout.math">AbstractMatrix.TransposeViewVector</a></code></li> |
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| <code><a href="../../../../org/apache/mahout/math/AbstractMatrix.html#COL">COL</a>, <a href="../../../../org/apache/mahout/math/AbstractMatrix.html#columnLabelBindings">columnLabelBindings</a>, <a href="../../../../org/apache/mahout/math/AbstractMatrix.html#columns">columns</a>, <a href="../../../../org/apache/mahout/math/AbstractMatrix.html#ROW">ROW</a>, <a href="../../../../org/apache/mahout/math/AbstractMatrix.html#rowLabelBindings">rowLabelBindings</a>, <a href="../../../../org/apache/mahout/math/AbstractMatrix.html#rows">rows</a></code></li> |
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| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/RandomTrinaryMatrix.html#RandomTrinaryMatrix-int-int-">RandomTrinaryMatrix</a></span>(int rows, |
| int columns)</code> </td> |
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| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/RandomTrinaryMatrix.html#RandomTrinaryMatrix-int-int-int-boolean-">RandomTrinaryMatrix</a></span>(int seed, |
| int rows, |
| int columns, |
| boolean highQuality)</code> </td> |
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| <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><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/RandomTrinaryMatrix.html#assignColumn-int-org.apache.mahout.math.Vector-">assignColumn</a></span>(int column, |
| <a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a> other)</code> |
| <div class="block">Assign the other vector values to the column of the receiver</div> |
| </td> |
| </tr> |
| <tr id="i1" 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/RandomTrinaryMatrix.html#assignRow-int-org.apache.mahout.math.Vector-">assignRow</a></span>(int row, |
| <a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a> other)</code> |
| <div class="block">Assign the other vector values to the row of the receiver</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>int[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/RandomTrinaryMatrix.html#getNumNondefaultElements--">getNumNondefaultElements</a></span>()</code> |
| <div class="block">Return the number of values in the recipient</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/RandomTrinaryMatrix.html#getQuick-int-int-">getQuick</a></span>(int row, |
| int column)</code> |
| <div class="block">Return the value at the given indexes, without checking bounds</div> |
| </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/RandomTrinaryMatrix.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="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/RandomTrinaryMatrix.html#like-int-int-">like</a></span>(int rows, |
| int 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="i6" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/mahout/math/RandomTrinaryMatrix.html#setQuick-int-int-double-">setQuick</a></span>(int row, |
| int column, |
| double value)</code> |
| <div class="block">Set the value at the given index, without checking bounds</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/RandomTrinaryMatrix.html#viewPart-int:A-int:A-">viewPart</a></span>(int[] offset, |
| int[] size)</code> |
| <div class="block">Return a new matrix containing the subset of the recipient</div> |
| </td> |
| </tr> |
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| <code><a href="../../../../org/apache/mahout/math/AbstractMatrix.html#aggregate-org.apache.mahout.math.function.DoubleDoubleFunction-org.apache.mahout.math.function.DoubleFunction-">aggregate</a>, <a href="../../../../org/apache/mahout/math/AbstractMatrix.html#aggregateColumns-org.apache.mahout.math.function.VectorFunction-">aggregateColumns</a>, <a href="../../../../org/apache/mahout/math/AbstractMatrix.html#aggregateRows-org.apache.mahout.math.function.VectorFunction-">aggregateRows</a>, <a href="../../../../org/apache/mahout/math/AbstractMatrix.html#asFormatString--">asFormatString</a>, <a href="../../../../org/apache/mahout/math/AbstractMatrix.html#assign-double-">assign</a>, <a href="../../../../org/apache/mahout/math/AbstractMatrix.html#assign-double:A:A-">assign</a>, <a href="../../../../org/apache/mahout/math/AbstractMatrix.html#assign-org.apache.mahout.math.function.DoubleFunction-">assign</a>, <a 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| <pre>public RandomTrinaryMatrix(int seed, |
| int rows, |
| int columns, |
| boolean highQuality)</pre> |
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| <pre>public RandomTrinaryMatrix(int rows, |
| int columns)</pre> |
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| <h4>assignColumn</h4> |
| <pre>public <a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a> assignColumn(int column, |
| <a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a> other)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../org/apache/mahout/math/Matrix.html#assignColumn-int-org.apache.mahout.math.Vector-">Matrix</a></code></span></div> |
| <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> |
| </dl> |
| </li> |
| </ul> |
| <a name="assignRow-int-org.apache.mahout.math.Vector-"> |
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| </a> |
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| <h4>assignRow</h4> |
| <pre>public <a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a> assignRow(int row, |
| <a href="../../../../org/apache/mahout/math/Vector.html" title="interface in org.apache.mahout.math">Vector</a> other)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../org/apache/mahout/math/Matrix.html#assignRow-int-org.apache.mahout.math.Vector-">Matrix</a></code></span></div> |
| <div class="block">Assign the other vector values to the row of the receiver</div> |
| <dl> |
| <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> |
| </dl> |
| </li> |
| </ul> |
| <a name="getQuick-int-int-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getQuick</h4> |
| <pre>public double getQuick(int row, |
| int column)</pre> |
| <div class="block">Return the value at the given indexes, without checking bounds</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <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> |
| </dl> |
| </li> |
| </ul> |
| <a name="like--"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>like</h4> |
| <pre>public <a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a> like()</pre> |
| <div class="block">Return an empty matrix of the same underlying class as the receiver</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a Matrix</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="like-int-int-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>like</h4> |
| <pre>public <a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a> like(int rows, |
| int 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> |
| </dl> |
| </li> |
| </ul> |
| <a name="setQuick-int-int-double-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setQuick</h4> |
| <pre>public void setQuick(int row, |
| int column, |
| double 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> |
| </dl> |
| </li> |
| </ul> |
| <a name="getNumNondefaultElements--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getNumNondefaultElements</h4> |
| <pre>public int[] getNumNondefaultElements()</pre> |
| <div class="block">Return the number of values in the recipient</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../org/apache/mahout/math/Matrix.html#getNumNondefaultElements--">getNumNondefaultElements</a></code> in interface <code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../org/apache/mahout/math/AbstractMatrix.html#getNumNondefaultElements--">getNumNondefaultElements</a></code> in class <code><a href="../../../../org/apache/mahout/math/AbstractMatrix.html" title="class in org.apache.mahout.math">AbstractMatrix</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an int[2] containing [row, column] count</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="viewPart-int:A-int:A-"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>viewPart</h4> |
| <pre>public <a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a> viewPart(int[] offset, |
| int[] size)</pre> |
| <div class="block">Return a new matrix containing the subset of the recipient</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../org/apache/mahout/math/Matrix.html#viewPart-int:A-int:A-">viewPart</a></code> in interface <code><a href="../../../../org/apache/mahout/math/Matrix.html" title="interface in org.apache.mahout.math">Matrix</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../org/apache/mahout/math/AbstractMatrix.html#viewPart-int:A-int:A-">viewPart</a></code> in class <code><a href="../../../../org/apache/mahout/math/AbstractMatrix.html" title="class in org.apache.mahout.math">AbstractMatrix</a></code></dd> |
| <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 new Matrix that is a view of the original</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> |
| </dl> |
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