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<div class="subTitle">org.apache.spark.ml.feature</div>
<h2 title="Class Tokenizer" class="title">Class Tokenizer</h2>
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<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li><a href="../../../../../org/apache/spark/ml/PipelineStage.html" title="class in org.apache.spark.ml">org.apache.spark.ml.PipelineStage</a></li>
<li>
<ul class="inheritance">
<li><a href="../../../../../org/apache/spark/ml/Transformer.html" title="class in org.apache.spark.ml">org.apache.spark.ml.Transformer</a></li>
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<ul class="inheritance">
<li><a href="../../../../../org/apache/spark/ml/UnaryTransformer.html" title="class in org.apache.spark.ml">org.apache.spark.ml.UnaryTransformer</a><java.lang.String,scala.collection.Seq<java.lang.String>,<a href="../../../../../org/apache/spark/ml/feature/Tokenizer.html" title="class in org.apache.spark.ml.feature">Tokenizer</a>></li>
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<li>org.apache.spark.ml.feature.Tokenizer</li>
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<dt>All Implemented Interfaces:</dt>
<dd>java.io.Serializable, <a href="../../../../../org/apache/spark/Logging.html" title="interface in org.apache.spark">Logging</a>, <a href="../../../../../org/apache/spark/ml/param/Params.html" title="interface in org.apache.spark.ml.param">Params</a>, <a href="../../../../../org/apache/spark/ml/util/Identifiable.html" title="interface in org.apache.spark.ml.util">Identifiable</a></dd>
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<br>
<pre>public class <span class="strong">Tokenizer</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/Tokenizer.html" title="class in org.apache.spark.ml.feature">Tokenizer</a>></pre>
<div class="block">:: Experimental ::
A tokenizer that converts the input string to lowercase and then splits it by white spaces.
<p></div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../org/apache/spark/ml/feature/RegexTokenizer.html" title="class in org.apache.spark.ml.feature"><code>RegexTokenizer</code></a>,
<a href="../../../../../serialized-form.html#org.apache.spark.ml.feature.Tokenizer">Serialized Form</a></dd></dl>
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<tr>
<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../../../org/apache/spark/ml/feature/Tokenizer.html#Tokenizer()">Tokenizer</a></strong>()</code> </td>
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<td class="colOne"><code><strong><a href="../../../../../org/apache/spark/ml/feature/Tokenizer.html#Tokenizer(java.lang.String)">Tokenizer</a></strong>(java.lang.String uid)</code> </td>
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<h3>Method Summary</h3>
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<caption><span>Methods</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/spark/ml/feature/Tokenizer.html" title="class in org.apache.spark.ml.feature">Tokenizer</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/Tokenizer.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>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected scala.Function1<java.lang.String,scala.collection.Seq<java.lang.String>></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/Tokenizer.html#createTransformFunc()">createTransformFunc</a></strong>()</code>
<div class="block">Creates the transform function using the given param map.</div>
</td>
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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>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/Tokenizer.html#outputDataType()">outputDataType</a></strong>()</code>
<div class="block">Returns the data type of the output column.</div>
</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/Tokenizer.html#uid()">uid</a></strong>()</code>
<div class="block">An immutable unique ID for the object and its derivatives.</div>
</td>
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<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/feature/Tokenizer.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>
<div class="block">Validates the input type.</div>
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<code><a href="../../../../../org/apache/spark/ml/UnaryTransformer.html#setInputCol(java.lang.String)">setInputCol</a>, <a href="../../../../../org/apache/spark/ml/UnaryTransformer.html#setOutputCol(java.lang.String)">setOutputCol</a>, <a href="../../../../../org/apache/spark/ml/UnaryTransformer.html#transform(org.apache.spark.sql.DataFrame)">transform</a>, <a href="../../../../../org/apache/spark/ml/UnaryTransformer.html#transformSchema(org.apache.spark.sql.types.StructType)">transformSchema</a></code></li>
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<h3>Methods inherited from class org.apache.spark.ml.<a href="../../../../../org/apache/spark/ml/Transformer.html" title="class in org.apache.spark.ml">Transformer</a></h3>
<code><a href="../../../../../org/apache/spark/ml/Transformer.html#transform(org.apache.spark.sql.DataFrame, org.apache.spark.ml.param.ParamMap)">transform</a>, <a href="../../../../../org/apache/spark/ml/Transformer.html#transform(org.apache.spark.sql.DataFrame, org.apache.spark.ml.param.ParamPair, org.apache.spark.ml.param.ParamPair...)">transform</a>, <a href="../../../../../org/apache/spark/ml/Transformer.html#transform(org.apache.spark.sql.DataFrame, org.apache.spark.ml.param.ParamPair, scala.collection.Seq)">transform</a></code></li>
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<h3>Methods inherited from class org.apache.spark.ml.<a href="../../../../../org/apache/spark/ml/PipelineStage.html" title="class in org.apache.spark.ml">PipelineStage</a></h3>
<code><a href="../../../../../org/apache/spark/ml/PipelineStage.html#transformSchema(org.apache.spark.sql.types.StructType, boolean)">transformSchema</a></code></li>
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<h3>Methods inherited from class java.lang.Object</h3>
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<h3>Methods inherited from interface org.apache.spark.<a href="../../../../../org/apache/spark/Logging.html" title="interface in org.apache.spark">Logging</a></h3>
<code><a href="../../../../../org/apache/spark/Logging.html#initializeIfNecessary()">initializeIfNecessary</a>, <a href="../../../../../org/apache/spark/Logging.html#initializeLogging()">initializeLogging</a>, <a href="../../../../../org/apache/spark/Logging.html#isTraceEnabled()">isTraceEnabled</a>, <a href="../../../../../org/apache/spark/Logging.html#log_()">log_</a>, <a href="../../../../../org/apache/spark/Logging.html#log()">log</a>, <a href="../../../../../org/apache/spark/Logging.html#logDebug(scala.Function0)">logDebug</a>, <a href="../../../../../org/apache/spark/Logging.html#logDebug(scala.Function0, java.lang.Throwable)">logDebug</a>, <a href="../../../../../org/apache/spark/Logging.html#logError(scala.Function0)">logError</a>, <a href="../../../../../org/apache/spark/Logging.html#logError(scala.Function0, java.lang.Throwable)">logError</a>, <a href="../../../../../org/apache/spark/Logging.html#logInfo(scala.Function0)">logInfo</a>, <a href="../../../../../org/apache/spark/Logging.html#logInfo(scala.Function0, java.lang.Throwable)">logInfo</a>, <a href="../../../../../org/apache/spark/Logging.html#logName()">logName</a>, <a href="../../../../../org/apache/spark/Logging.html#logTrace(scala.Function0)">logTrace</a>, <a href="../../../../../org/apache/spark/Logging.html#logTrace(scala.Function0, java.lang.Throwable)">logTrace</a>, <a href="../../../../../org/apache/spark/Logging.html#logWarning(scala.Function0)">logWarning</a>, <a href="../../../../../org/apache/spark/Logging.html#logWarning(scala.Function0, java.lang.Throwable)">logWarning</a></code></li>
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<h3>Methods inherited from interface org.apache.spark.ml.param.<a href="../../../../../org/apache/spark/ml/param/Params.html" title="interface in org.apache.spark.ml.param">Params</a></h3>
<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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<h3>Constructor Detail</h3>
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<h4>Tokenizer</h4>
<pre>public Tokenizer(java.lang.String uid)</pre>
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<h4>Tokenizer</h4>
<pre>public Tokenizer()</pre>
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<h4>uid</h4>
<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>
<dl><dt><span class="strong">Returns:</span></dt><dd>(undocumented)</dd></dl>
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<h4>createTransformFunc</h4>
<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>
<dl>
<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/Tokenizer.html" title="class in org.apache.spark.ml.feature">Tokenizer</a>></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>(undocumented)</dd></dl>
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<h4>validateInputType</h4>
<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>
<dl>
<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/Tokenizer.html" title="class in org.apache.spark.ml.feature">Tokenizer</a>></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>inputType</code> - (undocumented)</dd></dl>
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<h4>outputDataType</h4>
<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/Tokenizer.html" title="class in org.apache.spark.ml.feature">Tokenizer</a>></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>(undocumented)</dd></dl>
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<h4>copy</h4>
<pre>public <a href="../../../../../org/apache/spark/ml/feature/Tokenizer.html" title="class in org.apache.spark.ml.feature">Tokenizer</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>
<dl>
<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/Tokenizer.html" title="class in org.apache.spark.ml.feature">Tokenizer</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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