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<h2 title="Class RegexTokenizer" class="title">Class RegexTokenizer</h2>
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<li>java.lang.Object</li>
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<pre>public class <span class="strong">RegexTokenizer</span>
extends <a href="../../../../../org/apache/spark/ml/UnaryTransformer.html" title="class in org.apache.spark.ml">UnaryTransformer</a><java.lang.String,scala.collection.Seq<java.lang.String>,<a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html" title="class in org.apache.spark.ml.feature">RegexTokenizer</a>></pre>
<div class="block">:: Experimental ::
A regex based tokenizer that extracts tokens either by using the provided regex pattern to split
the text (default) or repeatedly matching the regex (if <code>gaps</code> is false).
Optional parameters also allow filtering tokens using a minimal length.
It returns an array of strings that can be empty.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../serialized-form.html#org.apache.spark.ml.feature.RegexTokenizer">Serialized Form</a></dd></dl>
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<td class="colOne"><code><strong><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html#RegexTokenizer()">RegexTokenizer</a></strong>()</code> </td>
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<td class="colOne"><code><strong><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html#RegexTokenizer(java.lang.String)">RegexTokenizer</a></strong>(java.lang.String uid)</code> </td>
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<td class="colFirst"><code><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html" title="class in org.apache.spark.ml.feature">RegexTokenizer</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html#copy(org.apache.spark.ml.param.ParamMap)">copy</a></strong>(<a href="../../../../../org/apache/spark/ml/param/ParamMap.html" title="class in org.apache.spark.ml.param">ParamMap</a> extra)</code>
<div class="block">Creates a copy of this instance with the same UID and some extra params.</div>
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<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html#createTransformFunc()">createTransformFunc</a></strong>()</code>
<div class="block">Creates the transform function using the given param map.</div>
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<td class="colFirst"><code><a href="../../../../../org/apache/spark/ml/param/BooleanParam.html" title="class in org.apache.spark.ml.param">BooleanParam</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html#gaps()">gaps</a></strong>()</code>
<div class="block">Indicates whether regex splits on gaps (true) or matches tokens (false).</div>
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<td class="colFirst"><code>boolean</code></td>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html#getMinTokenLength()">getMinTokenLength</a></strong>()</code> </td>
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<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html#getPattern()">getPattern</a></strong>()</code> </td>
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<td class="colFirst"><code><a href="../../../../../org/apache/spark/ml/param/IntParam.html" title="class in org.apache.spark.ml.param">IntParam</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html#minTokenLength()">minTokenLength</a></strong>()</code>
<div class="block">Minimum token length, >= 0.</div>
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<td class="colFirst"><code>protected <a href="../../../../../org/apache/spark/sql/types/DataType.html" title="class in org.apache.spark.sql.types">DataType</a></code></td>
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<td class="colFirst"><code><a href="../../../../../org/apache/spark/ml/param/Param.html" title="class in org.apache.spark.ml.param">Param</a><java.lang.String></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html#pattern()">pattern</a></strong>()</code>
<div class="block">Regex pattern used to match delimiters if <code>gaps</code> is true or tokens if <code>gaps</code> is false.</div>
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<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html" title="class in org.apache.spark.ml.feature">RegexTokenizer</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html#setGaps(boolean)">setGaps</a></strong>(boolean value)</code> </td>
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<td class="colFirst"><code><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html" title="class in org.apache.spark.ml.feature">RegexTokenizer</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html#setMinTokenLength(int)">setMinTokenLength</a></strong>(int value)</code> </td>
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<td class="colFirst"><code><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html" title="class in org.apache.spark.ml.feature">RegexTokenizer</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html#setPattern(java.lang.String)">setPattern</a></strong>(java.lang.String value)</code> </td>
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<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html#uid()">uid</a></strong>()</code>
<div class="block">An immutable unique ID for the object and its derivatives.</div>
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<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html#validateInputType(org.apache.spark.sql.types.DataType)">validateInputType</a></strong>(<a href="../../../../../org/apache/spark/sql/types/DataType.html" title="class in org.apache.spark.sql.types">DataType</a> inputType)</code>
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<code><a href="../../../../../org/apache/spark/ml/param/Params.html#clear(org.apache.spark.ml.param.Param)">clear</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#copyValues(T, org.apache.spark.ml.param.ParamMap)">copyValues</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#defaultCopy(org.apache.spark.ml.param.ParamMap)">defaultCopy</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#defaultParamMap()">defaultParamMap</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#explainParam(org.apache.spark.ml.param.Param)">explainParam</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#explainParams()">explainParams</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#extractParamMap()">extractParamMap</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#extractParamMap(org.apache.spark.ml.param.ParamMap)">extractParamMap</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#get(org.apache.spark.ml.param.Param)">get</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#getDefault(org.apache.spark.ml.param.Param)">getDefault</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#getOrDefault(org.apache.spark.ml.param.Param)">getOrDefault</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#getParam(java.lang.String)">getParam</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#hasDefault(org.apache.spark.ml.param.Param)">hasDefault</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#hasParam(java.lang.String)">hasParam</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#isDefined(org.apache.spark.ml.param.Param)">isDefined</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#isSet(org.apache.spark.ml.param.Param)">isSet</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#paramMap()">paramMap</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#params()">params</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#set(org.apache.spark.ml.param.Param, T)">set</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#set(org.apache.spark.ml.param.ParamPair)">set</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#set(java.lang.String, java.lang.Object)">set</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#setDefault(org.apache.spark.ml.param.Param, T)">setDefault</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#setDefault(scala.collection.Seq)">setDefault</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#shouldOwn(org.apache.spark.ml.param.Param)">shouldOwn</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html#validateParams()">validateParams</a></code></li>
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<h3>Methods inherited from interface org.apache.spark.ml.util.<a href="../../../../../org/apache/spark/ml/util/Identifiable.html" title="interface in org.apache.spark.ml.util">Identifiable</a></h3>
<code><a href="../../../../../org/apache/spark/ml/util/Identifiable.html#toString()">toString</a></code></li>
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<pre>public RegexTokenizer(java.lang.String uid)</pre>
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<pre>public RegexTokenizer()</pre>
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<pre>public java.lang.String uid()</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../org/apache/spark/ml/util/Identifiable.html#uid()">Identifiable</a></code></strong></div>
<div class="block">An immutable unique ID for the object and its derivatives.</div>
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<pre>public <a href="../../../../../org/apache/spark/ml/param/IntParam.html" title="class in org.apache.spark.ml.param">IntParam</a> minTokenLength()</pre>
<div class="block">Minimum token length, >= 0.
Default: 1, to avoid returning empty strings</div>
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<pre>public <a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html" title="class in org.apache.spark.ml.feature">RegexTokenizer</a> setMinTokenLength(int value)</pre>
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<pre>public <a href="../../../../../org/apache/spark/ml/param/BooleanParam.html" title="class in org.apache.spark.ml.param">BooleanParam</a> gaps()</pre>
<div class="block">Indicates whether regex splits on gaps (true) or matches tokens (false).
Default: true</div>
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<pre>public <a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html" title="class in org.apache.spark.ml.feature">RegexTokenizer</a> setGaps(boolean value)</pre>
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<pre>public <a href="../../../../../org/apache/spark/ml/param/Param.html" title="class in org.apache.spark.ml.param">Param</a><java.lang.String> pattern()</pre>
<div class="block">Regex pattern used to match delimiters if <code>gaps</code> is true or tokens if <code>gaps</code> is false.
Default: <code>"\\s+"</code></div>
<dl><dt><span class="strong">Returns:</span></dt><dd>(undocumented)</dd></dl>
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<pre>public <a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html" title="class in org.apache.spark.ml.feature">RegexTokenizer</a> setPattern(java.lang.String value)</pre>
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<pre>public java.lang.String getPattern()</pre>
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<pre>protected scala.Function1<java.lang.String,scala.collection.Seq<java.lang.String>> createTransformFunc()</pre>
<div class="block"><strong>Description copied from class: <code><a href="../../../../../org/apache/spark/ml/UnaryTransformer.html#createTransformFunc()">UnaryTransformer</a></code></strong></div>
<div class="block">Creates the transform function using the given param map. The input param map already takes
account of the embedded param map. So the param values should be determined solely by the input
param map.</div>
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<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/ml/UnaryTransformer.html#createTransformFunc()">createTransformFunc</a></code> in class <code><a href="../../../../../org/apache/spark/ml/UnaryTransformer.html" title="class in org.apache.spark.ml">UnaryTransformer</a><java.lang.String,scala.collection.Seq<java.lang.String>,<a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html" title="class in org.apache.spark.ml.feature">RegexTokenizer</a>></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>(undocumented)</dd></dl>
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<pre>protected void validateInputType(<a href="../../../../../org/apache/spark/sql/types/DataType.html" title="class in org.apache.spark.sql.types">DataType</a> inputType)</pre>
<div class="block"><strong>Description copied from class: <code><a href="../../../../../org/apache/spark/ml/UnaryTransformer.html#validateInputType(org.apache.spark.sql.types.DataType)">UnaryTransformer</a></code></strong></div>
<div class="block">Validates the input type. Throw an exception if it is invalid.</div>
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<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/ml/UnaryTransformer.html#validateInputType(org.apache.spark.sql.types.DataType)">validateInputType</a></code> in class <code><a href="../../../../../org/apache/spark/ml/UnaryTransformer.html" title="class in org.apache.spark.ml">UnaryTransformer</a><java.lang.String,scala.collection.Seq<java.lang.String>,<a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html" title="class in org.apache.spark.ml.feature">RegexTokenizer</a>></code></dd>
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<pre>protected <a href="../../../../../org/apache/spark/sql/types/DataType.html" title="class in org.apache.spark.sql.types">DataType</a> outputDataType()</pre>
<div class="block"><strong>Description copied from class: <code><a href="../../../../../org/apache/spark/ml/UnaryTransformer.html#outputDataType()">UnaryTransformer</a></code></strong></div>
<div class="block">Returns the data type of the output column.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/ml/UnaryTransformer.html#outputDataType()">outputDataType</a></code> in class <code><a href="../../../../../org/apache/spark/ml/UnaryTransformer.html" title="class in org.apache.spark.ml">UnaryTransformer</a><java.lang.String,scala.collection.Seq<java.lang.String>,<a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html" title="class in org.apache.spark.ml.feature">RegexTokenizer</a>></code></dd>
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<pre>public <a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html" title="class in org.apache.spark.ml.feature">RegexTokenizer</a> copy(<a href="../../../../../org/apache/spark/ml/param/ParamMap.html" title="class in org.apache.spark.ml.param">ParamMap</a> extra)</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../org/apache/spark/ml/param/Params.html#copy(org.apache.spark.ml.param.ParamMap)">Params</a></code></strong></div>
<div class="block">Creates a copy of this instance with the same UID and some extra params.
Subclasses should implement this method and set the return type properly.
<p></div>
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<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/ml/param/Params.html#copy(org.apache.spark.ml.param.ParamMap)">copy</a></code> in interface <code><a href="../../../../../org/apache/spark/ml/param/Params.html" title="interface in org.apache.spark.ml.param">Params</a></code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/ml/UnaryTransformer.html#copy(org.apache.spark.ml.param.ParamMap)">copy</a></code> in class <code><a href="../../../../../org/apache/spark/ml/UnaryTransformer.html" title="class in org.apache.spark.ml">UnaryTransformer</a><java.lang.String,scala.collection.Seq<java.lang.String>,<a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html" title="class in org.apache.spark.ml.feature">RegexTokenizer</a>></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>extra</code> - (undocumented)</dd>
<dt><span class="strong">Returns:</span></dt><dd>(undocumented)</dd><dt><span class="strong">See Also:</span></dt><dd><code>defaultCopy()</code></dd></dl>
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