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| <h2 title="Class VectorHelper" class="title">Class VectorHelper</h2> |
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| <pre>public final class <span class="typeNameLabel">VectorHelper</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">Static utility methods related to vectors.</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"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static <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/utils/vectors/VectorHelper.html#buildJson-java.lang.Iterable-">buildJson</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><<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/common/Pair.html?is-external=true" title="class or interface in org.apache.mahout.common">Pair</a><<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/Double.html?is-external=true" title="class or interface in java.lang">Double</a>>> iterable)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <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/utils/vectors/VectorHelper.html#buildJson-java.lang.Iterable-java.lang.StringBuilder-">buildJson</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><<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/common/Pair.html?is-external=true" title="class or interface in org.apache.mahout.common">Pair</a><<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/Double.html?is-external=true" title="class or interface in java.lang">Double</a>>> iterable, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a> bldr)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/common/Pair.html?is-external=true" title="class or interface in org.apache.mahout.common">Pair</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>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a>>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/utils/vectors/VectorHelper.html#firstEntries-org.apache.mahout.math.Vector-int-">firstEntries</a></span>(<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> vector, |
| int maxEntries)</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <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/utils/vectors/VectorHelper.html#loadTermDictionary-org.apache.hadoop.conf.Configuration-java.lang.String-">loadTermDictionary</a></span>(org.apache.hadoop.conf.Configuration conf, |
| <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> filePattern)</code> |
| <div class="block">Read a dictionary in <code>SequenceFile</code> generated by |
| <a href="http://mahout.apache.org/mahout-mr/apidocs/org/apache/mahout/vectorizer/DictionaryVectorizer.html?is-external=true" title="class or interface in org.apache.mahout.vectorizer"><code>DictionaryVectorizer</code></a></div> |
| </td> |
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| <td class="colFirst"><code>static <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/utils/vectors/VectorHelper.html#loadTermDictionary-java.io.File-">loadTermDictionary</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</a> dictFile)</code> |
| <div class="block">Read in a dictionary file.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/common/Pair.html?is-external=true" title="class or interface in org.apache.mahout.common">Pair</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>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a>>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/utils/vectors/VectorHelper.html#topEntries-org.apache.mahout.math.Vector-int-">topEntries</a></span>(<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> vector, |
| int maxEntries)</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/common/Pair.html?is-external=true" title="class or interface in org.apache.mahout.common">Pair</a><<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/Double.html?is-external=true" title="class or interface in java.lang">Double</a>>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/utils/vectors/VectorHelper.html#toWeightedTerms-java.util.Collection-java.lang.String:A-">toWeightedTerms</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/common/Pair.html?is-external=true" title="class or interface in org.apache.mahout.common">Pair</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>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a>>> entries, |
| <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>[] dictionary)</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>static <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/utils/vectors/VectorHelper.html#vectorToCSVString-org.apache.mahout.math.Vector-boolean-">vectorToCSVString</a></span>(<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> vector, |
| boolean namesAsComments)</code> </td> |
| </tr> |
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| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/mahout/utils/vectors/VectorHelper.html#vectorToCSVString-org.apache.mahout.math.Vector-boolean-java.lang.Appendable-">vectorToCSVString</a></span>(<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> vector, |
| boolean namesAsComments, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Appendable.html?is-external=true" title="class or interface in java.lang">Appendable</a> bldr)</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>static <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/utils/vectors/VectorHelper.html#vectorToJson-org.apache.mahout.math.Vector-java.lang.String:A-int-boolean-">vectorToJson</a></span>(<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> vector, |
| <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>[] dictionary, |
| int maxEntries, |
| boolean sort)</code> </td> |
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| <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 static <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> vectorToCSVString(<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> vector, |
| boolean namesAsComments) |
| throws <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></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <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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| <pre>public static <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> buildJson(<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><<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/common/Pair.html?is-external=true" title="class or interface in org.apache.mahout.common">Pair</a><<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/Double.html?is-external=true" title="class or interface in java.lang">Double</a>>> iterable)</pre> |
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| <pre>public static <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> buildJson(<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><<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/common/Pair.html?is-external=true" title="class or interface in org.apache.mahout.common">Pair</a><<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/Double.html?is-external=true" title="class or interface in java.lang">Double</a>>> iterable, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a> bldr)</pre> |
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| <pre>public static <a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/common/Pair.html?is-external=true" title="class or interface in org.apache.mahout.common">Pair</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>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a>>> topEntries(<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> vector, |
| int maxEntries)</pre> |
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| <pre>public static <a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/common/Pair.html?is-external=true" title="class or interface in org.apache.mahout.common">Pair</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>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a>>> firstEntries(<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> vector, |
| int maxEntries)</pre> |
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| <h4>toWeightedTerms</h4> |
| <pre>public static <a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/common/Pair.html?is-external=true" title="class or interface in org.apache.mahout.common">Pair</a><<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/Double.html?is-external=true" title="class or interface in java.lang">Double</a>>> toWeightedTerms(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="http://mahout.apache.org/mahout-math/apidocs/org/apache/mahout/common/Pair.html?is-external=true" title="class or interface in org.apache.mahout.common">Pair</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>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a>>> entries, |
| <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>[] dictionary)</pre> |
| </li> |
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| <a name="vectorToJson-org.apache.mahout.math.Vector-java.lang.String:A-int-boolean-"> |
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| <h4>vectorToJson</h4> |
| <pre>public static <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> vectorToJson(<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> vector, |
| <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>[] dictionary, |
| int maxEntries, |
| boolean sort)</pre> |
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| <pre>public static void vectorToCSVString(<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> vector, |
| boolean namesAsComments, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Appendable.html?is-external=true" title="class or interface in java.lang">Appendable</a> bldr) |
| throws <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></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <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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| <pre>public static <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>[] loadTermDictionary(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</a> dictFile) |
| throws <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></pre> |
| <div class="block">Read in a dictionary file. Format is: |
| <p/> |
| <pre> |
| term DocFreq Index |
| </pre></div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <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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| <h4>loadTermDictionary</h4> |
| <pre>public static <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>[] loadTermDictionary(org.apache.hadoop.conf.Configuration conf, |
| <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> filePattern)</pre> |
| <div class="block">Read a dictionary in <code>SequenceFile</code> generated by |
| <a href="http://mahout.apache.org/mahout-mr/apidocs/org/apache/mahout/vectorizer/DictionaryVectorizer.html?is-external=true" title="class or interface in org.apache.mahout.vectorizer"><code>DictionaryVectorizer</code></a></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>filePattern</code> - <PATH TO DICTIONARY>/dictionary.file-*</dd> |
| </dl> |
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