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<div class="subTitle">org.apache.mahout.math.hadoop.stochasticsvd.qr</div>
<h2 title="Class GivensThinSolver" class="title">Class GivensThinSolver</h2>
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<pre>public class <span class="typeNameLabel">GivensThinSolver</span>
extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block">Givens Thin solver. Standard Givens operations are reordered in a way that
helps us to push them thru MapReduce operations in a block fashion.</div>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#GivensThinSolver-int-int-">GivensThinSolver</a></span>(int&nbsp;m,
int&nbsp;n)</code>&nbsp;</td>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></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="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#adjust-int-">adjust</a></span>(int&nbsp;newM)</code>&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#appendRow-double:A-">appendRow</a></span>(double[]&nbsp;aRow)</code>
<div class="block">api for row-by-row addition</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#applyGivensInPlace-double-double-double:A-double:A-int-int-">applyGivensInPlace</a></span>(double&nbsp;c,
double&nbsp;s,
double[]&nbsp;row1,
double[]&nbsp;row2,
int&nbsp;offset,
int&nbsp;len)</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#applyGivensInPlace-double-double-int-int-org.apache.mahout.math.Matrix-">applyGivensInPlace</a></span>(double&nbsp;c,
double&nbsp;s,
int&nbsp;i,
int&nbsp;k,
<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/Matrix.html?is-external=true" title="class or interface in org.apache.mahout.math">Matrix</a>&nbsp;mx)</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#applyGivensInPlace-double-double-org.apache.mahout.math.Vector-org.apache.mahout.math.Vector-int-int-">applyGivensInPlace</a></span>(double&nbsp;c,
double&nbsp;s,
<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/Vector.html?is-external=true" title="class or interface in org.apache.mahout.math">Vector</a>&nbsp;row1,
<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/Vector.html?is-external=true" title="class or interface in org.apache.mahout.math">Vector</a>&nbsp;row2,
int&nbsp;offset,
int&nbsp;len)</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static double[][]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#computeQtHat-double:A:A-int-java.util.Iterator-">computeQtHat</a></span>(double[][]&nbsp;qt,
int&nbsp;i,
<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a>&lt;<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/UpperTriangular.html?is-external=true" title="class or interface in org.apache.mahout.math">UpperTriangular</a>&gt;&nbsp;rIter)</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#fromRho-double-double:A-">fromRho</a></span>(double&nbsp;rho,
double[]&nbsp;csOut)</code>&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#getCnt--">getCnt</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#getM--">getM</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#getN--">getN</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/UpperTriangular.html?is-external=true" title="class or interface in org.apache.mahout.math">UpperTriangular</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#getRTilde--">getRTilde</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>double[][]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#getThinQtTilde--">getThinQtTilde</a></span>()</code>&nbsp;</td>
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<tr id="i12" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#givens-double-double-double:A-">givens</a></span>(double&nbsp;a,
double&nbsp;b,
double[]&nbsp;csOut)</code>&nbsp;</td>
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<tr id="i13" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#isFull--">isFull</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#isOrthonormal-double:A:A-boolean-double-">isOrthonormal</a></span>(double[][]&nbsp;qt,
boolean&nbsp;insufficientRank,
double&nbsp;epsilon)</code>&nbsp;</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#isOrthonormalBlocked-java.lang.Iterable-boolean-double-">isOrthonormalBlocked</a></span>(<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;double[][]&gt;&nbsp;qtHats,
boolean&nbsp;insufficientRank,
double&nbsp;epsilon)</code>&nbsp;</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>static double[][]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#mergeQrDown-double:A:A-double:A:A-double:A:A-">mergeQrDown</a></span>(double[][]&nbsp;r1,
double[][]&nbsp;qt2,
double[][]&nbsp;r2)</code>&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>static double[][]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#mergeQrDown-org.apache.mahout.math.UpperTriangular-double:A:A-org.apache.mahout.math.UpperTriangular-">mergeQrDown</a></span>(<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/UpperTriangular.html?is-external=true" title="class or interface in org.apache.mahout.math">UpperTriangular</a>&nbsp;r1,
double[][]&nbsp;qt2,
<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/UpperTriangular.html?is-external=true" title="class or interface in org.apache.mahout.math">UpperTriangular</a>&nbsp;r2)</code>&nbsp;</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>static double[][]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#mergeQrUp-double:A:A-double:A:A-double:A:A-">mergeQrUp</a></span>(double[][]&nbsp;qt1,
double[][]&nbsp;r1,
double[][]&nbsp;r2)</code>&nbsp;</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>static double[][]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#mergeQrUp-double:A:A-org.apache.mahout.math.UpperTriangular-org.apache.mahout.math.UpperTriangular-">mergeQrUp</a></span>(double[][]&nbsp;qt1,
<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/UpperTriangular.html?is-external=true" title="class or interface in org.apache.mahout.math">UpperTriangular</a>&nbsp;r1,
<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/UpperTriangular.html?is-external=true" title="class or interface in org.apache.mahout.math">UpperTriangular</a>&nbsp;r2)</code>&nbsp;</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#mergeR-double:A:A-double:A:A-">mergeR</a></span>(double[][]&nbsp;r1,
double[][]&nbsp;r2)</code>&nbsp;</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#mergeR-org.apache.mahout.math.UpperTriangular-org.apache.mahout.math.UpperTriangular-">mergeR</a></span>(<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/UpperTriangular.html?is-external=true" title="class or interface in org.apache.mahout.math">UpperTriangular</a>&nbsp;r1,
<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/UpperTriangular.html?is-external=true" title="class or interface in org.apache.mahout.math">UpperTriangular</a>&nbsp;r2)</code>&nbsp;</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#mergeRonQ-double:A:A-double:A:A-double:A:A-double:A:A-">mergeRonQ</a></span>(double[][]&nbsp;r1,
double[][]&nbsp;r2,
double[][]&nbsp;qt1,
double[][]&nbsp;qt2)</code>&nbsp;</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#mergeRonQ-org.apache.mahout.math.UpperTriangular-org.apache.mahout.math.UpperTriangular-double:A:A-double:A:A-">mergeRonQ</a></span>(<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/UpperTriangular.html?is-external=true" title="class or interface in org.apache.mahout.math">UpperTriangular</a>&nbsp;r1,
<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/UpperTriangular.html?is-external=true" title="class or interface in org.apache.mahout.math">UpperTriangular</a>&nbsp;r2,
double[][]&nbsp;qt1,
double[][]&nbsp;qt2)</code>&nbsp;</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#reset--">reset</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i25" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#solve-org.apache.mahout.math.Matrix-">solve</a></span>(<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/Matrix.html?is-external=true" title="class or interface in org.apache.mahout.math">Matrix</a>&nbsp;a)</code>&nbsp;</td>
</tr>
<tr id="i26" class="altColor">
<td class="colFirst"><code>static double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#toRho-double-double-">toRho</a></span>(double&nbsp;c,
double&nbsp;s)</code>&nbsp;</td>
</tr>
<tr id="i27" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/mahout/math/hadoop/stochasticsvd/qr/GivensThinSolver.html#trim--">trim</a></span>()</code>&nbsp;</td>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<pre>public&nbsp;GivensThinSolver(int&nbsp;m,
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<pre>public&nbsp;void&nbsp;adjust(int&nbsp;newM)</pre>
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<pre>public&nbsp;void&nbsp;appendRow(double[]&nbsp;aRow)</pre>
<div class="block">api for row-by-row addition</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<pre>public&nbsp;<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/UpperTriangular.html?is-external=true" title="class or interface in org.apache.mahout.math">UpperTriangular</a>&nbsp;getRTilde()</pre>
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<pre>public&nbsp;double[][]&nbsp;getThinQtTilde()</pre>
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<pre>public static&nbsp;void&nbsp;applyGivensInPlace(double&nbsp;c,
double&nbsp;s,
double[]&nbsp;row1,
double[]&nbsp;row2,
int&nbsp;offset,
int&nbsp;len)</pre>
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<pre>public static&nbsp;void&nbsp;applyGivensInPlace(double&nbsp;c,
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int&nbsp;offset,
int&nbsp;len)</pre>
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<pre>public static&nbsp;void&nbsp;applyGivensInPlace(double&nbsp;c,
double&nbsp;s,
int&nbsp;i,
int&nbsp;k,
<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/Matrix.html?is-external=true" title="class or interface in org.apache.mahout.math">Matrix</a>&nbsp;mx)</pre>
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<pre>public static&nbsp;void&nbsp;fromRho(double&nbsp;rho,
double[]&nbsp;csOut)</pre>
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<pre>public static&nbsp;void&nbsp;givens(double&nbsp;a,
double&nbsp;b,
double[]&nbsp;csOut)</pre>
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<pre>public static&nbsp;double&nbsp;toRho(double&nbsp;c,
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<pre>public static&nbsp;void&nbsp;mergeR(<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/UpperTriangular.html?is-external=true" title="class or interface in org.apache.mahout.math">UpperTriangular</a>&nbsp;r1,
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<pre>public static&nbsp;void&nbsp;mergeR(double[][]&nbsp;r1,
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double[][]&nbsp;qt2)</pre>
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<pre>public static&nbsp;void&nbsp;mergeRonQ(double[][]&nbsp;r1,
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double[][]&nbsp;qt1,
double[][]&nbsp;qt2)</pre>
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<pre>public static&nbsp;double[][]&nbsp;mergeQrUp(double[][]&nbsp;qt1,
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<pre>public static&nbsp;double[][]&nbsp;mergeQrUp(double[][]&nbsp;qt1,
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<pre>public static&nbsp;double[][]&nbsp;mergeQrDown(double[][]&nbsp;r1,
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double[][]&nbsp;r2)</pre>
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<pre>public static&nbsp;double[][]&nbsp;mergeQrDown(<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/UpperTriangular.html?is-external=true" title="class or interface in org.apache.mahout.math">UpperTriangular</a>&nbsp;r1,
double[][]&nbsp;qt2,
<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/math/UpperTriangular.html?is-external=true" title="class or interface in org.apache.mahout.math">UpperTriangular</a>&nbsp;r2)</pre>
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<pre>public static&nbsp;double[][]&nbsp;computeQtHat(double[][]&nbsp;qt,
int&nbsp;i,
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<pre>public static&nbsp;boolean&nbsp;isOrthonormal(double[][]&nbsp;qt,
boolean&nbsp;insufficientRank,
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<pre>public static&nbsp;boolean&nbsp;isOrthonormalBlocked(<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;double[][]&gt;&nbsp;qtHats,
boolean&nbsp;insufficientRank,
double&nbsp;epsilon)</pre>
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