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<div class="subTitle">org.apache.mahout.classifier.sgd</div>
<h2 title="Class OnlineLogisticRegression" class="title">Class OnlineLogisticRegression</h2>
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<li><a href="../../../../../org/apache/mahout/classifier/AbstractVectorClassifier.html" title="class in org.apache.mahout.classifier">org.apache.mahout.classifier.AbstractVectorClassifier</a></li>
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<li><a href="../../../../../org/apache/mahout/classifier/sgd/AbstractOnlineLogisticRegression.html" title="class in org.apache.mahout.classifier.sgd">org.apache.mahout.classifier.sgd.AbstractOnlineLogisticRegression</a></li>
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<li>org.apache.mahout.classifier.sgd.OnlineLogisticRegression</li>
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<pre>public class <span class="typeNameLabel">OnlineLogisticRegression</span>
extends <a href="../../../../../org/apache/mahout/classifier/sgd/AbstractOnlineLogisticRegression.html" title="class in org.apache.mahout.classifier.sgd">AbstractOnlineLogisticRegression</a>
implements org.apache.hadoop.io.Writable</pre>
<div class="block">Extends the basic on-line logistic regression learner with a specific set of learning
rate annealing schedules.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html#WRITABLE_VERSION">WRITABLE_VERSION</a></span></code>&nbsp;</td>
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<code><a href="../../../../../org/apache/mahout/classifier/sgd/AbstractOnlineLogisticRegression.html#beta">beta</a>, <a href="../../../../../org/apache/mahout/classifier/sgd/AbstractOnlineLogisticRegression.html#numCategories">numCategories</a>, <a href="../../../../../org/apache/mahout/classifier/sgd/AbstractOnlineLogisticRegression.html#prior">prior</a>, <a href="../../../../../org/apache/mahout/classifier/sgd/AbstractOnlineLogisticRegression.html#step">step</a>, <a href="../../../../../org/apache/mahout/classifier/sgd/AbstractOnlineLogisticRegression.html#updateCounts">updateCounts</a>, <a href="../../../../../org/apache/mahout/classifier/sgd/AbstractOnlineLogisticRegression.html#updateSteps">updateSteps</a></code></li>
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<code><a href="../../../../../org/apache/mahout/classifier/AbstractVectorClassifier.html#MIN_LOG_LIKELIHOOD">MIN_LOG_LIKELIHOOD</a></code></li>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html#OnlineLogisticRegression--">OnlineLogisticRegression</a></span>()</code>&nbsp;</td>
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int&nbsp;numFeatures,
<a href="../../../../../org/apache/mahout/classifier/sgd/PriorFunction.html" title="interface in org.apache.mahout.classifier.sgd">PriorFunction</a>&nbsp;prior)</code>&nbsp;</td>
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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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<tr id="i0" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html" title="class in org.apache.mahout.classifier.sgd">OnlineLogisticRegression</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html#alpha-double-">alpha</a></span>(double&nbsp;alpha)</code>
<div class="block">Chainable configuration option.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html" title="class in org.apache.mahout.classifier.sgd">OnlineLogisticRegression</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html#copy--">copy</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html#copyFrom-org.apache.mahout.classifier.sgd.OnlineLogisticRegression-">copyFrom</a></span>(<a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html" title="class in org.apache.mahout.classifier.sgd">OnlineLogisticRegression</a>&nbsp;other)</code>&nbsp;</td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html#currentLearningRate--">currentLearningRate</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html" title="class in org.apache.mahout.classifier.sgd">OnlineLogisticRegression</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html#decayExponent-double-">decayExponent</a></span>(double&nbsp;decayExponent)</code>&nbsp;</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html" title="class in org.apache.mahout.classifier.sgd">OnlineLogisticRegression</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html#lambda-double-">lambda</a></span>(double&nbsp;lambda)</code>
<div class="block">Chainable configuration option.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html" title="class in org.apache.mahout.classifier.sgd">OnlineLogisticRegression</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html#learningRate-double-">learningRate</a></span>(double&nbsp;learningRate)</code>
<div class="block">Chainable configuration option.</div>
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</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html#perTermLearningRate-int-">perTermLearningRate</a></span>(int&nbsp;j)</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html#readFields-java.io.DataInput-">readFields</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a>&nbsp;in)</code>&nbsp;</td>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html" title="class in org.apache.mahout.classifier.sgd">OnlineLogisticRegression</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html#stepOffset-int-">stepOffset</a></span>(int&nbsp;stepOffset)</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html#write-java.io.DataOutput-">write</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a>&nbsp;out)</code>&nbsp;</td>
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<pre>public static final&nbsp;int WRITABLE_VERSION</pre>
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<pre>public&nbsp;OnlineLogisticRegression()</pre>
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<pre>public&nbsp;OnlineLogisticRegression(int&nbsp;numCategories,
int&nbsp;numFeatures,
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<h4>alpha</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html" title="class in org.apache.mahout.classifier.sgd">OnlineLogisticRegression</a>&nbsp;alpha(double&nbsp;alpha)</pre>
<div class="block">Chainable configuration option.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>alpha</code> - New value of decayFactor, the exponential decay rate for the learning rate.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>This, so other configurations can be chained.</dd>
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<pre>public&nbsp;<a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html" title="class in org.apache.mahout.classifier.sgd">OnlineLogisticRegression</a>&nbsp;lambda(double&nbsp;lambda)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../org/apache/mahout/classifier/sgd/AbstractOnlineLogisticRegression.html#lambda-double-">AbstractOnlineLogisticRegression</a></code></span></div>
<div class="block">Chainable configuration option.</div>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../org/apache/mahout/classifier/sgd/AbstractOnlineLogisticRegression.html#lambda-double-">lambda</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/mahout/classifier/sgd/AbstractOnlineLogisticRegression.html" title="class in org.apache.mahout.classifier.sgd">AbstractOnlineLogisticRegression</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>lambda</code> - New value of lambda, the weighting factor for the prior distribution.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>This, so other configurations can be chained.</dd>
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<pre>public&nbsp;<a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html" title="class in org.apache.mahout.classifier.sgd">OnlineLogisticRegression</a>&nbsp;learningRate(double&nbsp;learningRate)</pre>
<div class="block">Chainable configuration option.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>learningRate</code> - New value of initial learning rate.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>This, so other configurations can be chained.</dd>
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<pre>public&nbsp;<a href="../../../../../org/apache/mahout/classifier/sgd/OnlineLogisticRegression.html" title="class in org.apache.mahout.classifier.sgd">OnlineLogisticRegression</a>&nbsp;decayExponent(double&nbsp;decayExponent)</pre>
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<pre>public&nbsp;double&nbsp;perTermLearningRate(int&nbsp;j)</pre>
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<pre>public&nbsp;double&nbsp;currentLearningRate()</pre>
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<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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