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 <div class="subTitle">org.apache.commons.math3.stat</div>
 <h2 title="Class Frequency" class="title">Class Frequency</h2>
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 <div class="contentContainer">
 <ul class="inheritance">
 <li><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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 <li>org.apache.commons.math3.stat.Frequency</li>
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 <div class="description">
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 <dl>
 <dt>All Implemented Interfaces:</dt>
 <dd><a href="http://docs.oracle.com/javase/6/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a></dd>
 </dl>
 <hr>
 <br>
 <pre>public class <span class="strong">Frequency</span>
 extends <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
 implements <a href="http://docs.oracle.com/javase/6/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a></pre>
 <div class="block">Maintains a frequency distribution.
  <p>
  Accepts int, long, char or Comparable values.  New values added must be
  comparable to those that have been added, otherwise the add method will
  throw an IllegalArgumentException.</p>
  <p>
  Integer values (int, long, Integer, Long) are not distinguished by type --
  i.e. <code>addValue(Long.valueOf(2)), addValue(2), addValue(2l)</code> all have
  the same effect (similarly for arguments to <code>getCount,</code> etc.).</p>
  <p>NOTE: byte and short values will be implicitly converted to int values
  by the compiler, thus there are no explicit overloaded methods for these
  primitive types.</p>
  <p>
  char values are converted by <code>addValue</code> to Character instances.
  As such, these values are not comparable to integral values, so attempts
  to combine integral types with chars in a frequency distribution will fail.
  </p>
  <p>
  Float is not coerced to Double.
  Since they are not Comparable with each other the user must do any necessary coercion.
  Float.NaN and Double.NaN are not treated specially; they may occur in input and will
  occur in output if appropriate.
  </b>
  <p>
  The values are ordered using the default (natural order), unless a
  <code>Comparator</code> is supplied in the constructor.</p></div>
 <dl><dt><span class="strong">Version:</span></dt>
   <dd>$Id: Frequency.java 1519820 2013-09-03 19:58:03Z tn $</dd>
 <dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../serialized-form.html#org.apache.commons.math3.stat.Frequency">Serialized Form</a></dd></dl>
 </li>
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 <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
 <caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colOne" scope="col">Constructor and Description</th>
 </tr>
 <tr class="altColor">
 <td class="colOne"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#Frequency()">Frequency</a></strong>()</code>
 <div class="block">Default constructor.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colOne"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#Frequency(java.util.Comparator)">Frequency</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/util/Comparator.html?is-external=true" title="class or interface in java.util">Comparator</a>&lt;?&gt;&nbsp;comparator)</code>
 <div class="block">Constructor allowing values Comparator to be specified.</div>
 </td>
 </tr>
 </table>
 </li>
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 <h3>Method Summary</h3>
 <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
 <caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Method and Description</th>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#addValue(char)">addValue</a></strong>(char&nbsp;v)</code>
 <div class="block">Adds 1 to the frequency count for v.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#addValue(java.lang.Comparable)">addValue</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&nbsp;v)</code>
 <div class="block">Adds 1 to the frequency count for v.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#addValue(int)">addValue</a></strong>(int&nbsp;v)</code>
 <div class="block">Adds 1 to the frequency count for v.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#addValue(long)">addValue</a></strong>(long&nbsp;v)</code>
 <div class="block">Adds 1 to the frequency count for v.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#clear()">clear</a></strong>()</code>
 <div class="block">Clears the frequency table</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a>&lt;<a href="http://docs.oracle.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</a>&lt;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;,<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>&gt;&gt;</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#entrySetIterator()">entrySetIterator</a></strong>()</code>
 <div class="block">Return an Iterator over the set of keys and values that have been added.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#equals(java.lang.Object)">equals</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;obj)</code></td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getCount(char)">getCount</a></strong>(char&nbsp;v)</code>
 <div class="block">Returns the number of values equal to v.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getCount(java.lang.Comparable)">getCount</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&nbsp;v)</code>
 <div class="block">Returns the number of values equal to v.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getCount(int)">getCount</a></strong>(int&nbsp;v)</code>
 <div class="block">Returns the number of values equal to v.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getCount(long)">getCount</a></strong>(long&nbsp;v)</code>
 <div class="block">Returns the number of values equal to v.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getCumFreq(char)">getCumFreq</a></strong>(char&nbsp;v)</code>
 <div class="block">Returns the cumulative frequency of values less than or equal to v.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getCumFreq(java.lang.Comparable)">getCumFreq</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&nbsp;v)</code>
 <div class="block">Returns the cumulative frequency of values less than or equal to v.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getCumFreq(int)">getCumFreq</a></strong>(int&nbsp;v)</code>
 <div class="block">Returns the cumulative frequency of values less than or equal to v.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getCumFreq(long)">getCumFreq</a></strong>(long&nbsp;v)</code>
 <div class="block">Returns the cumulative frequency of values less than or equal to v.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>double</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getCumPct(char)">getCumPct</a></strong>(char&nbsp;v)</code>
 <div class="block">Returns the cumulative percentage of values less than or equal to v
  (as a proportion between 0 and 1).</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>double</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getCumPct(java.lang.Comparable)">getCumPct</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&nbsp;v)</code>
 <div class="block">Returns the cumulative percentage of values less than or equal to v
  (as a proportion between 0 and 1).</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>double</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getCumPct(int)">getCumPct</a></strong>(int&nbsp;v)</code>
 <div class="block">Returns the cumulative percentage of values less than or equal to v
  (as a proportion between 0 and 1).</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>double</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getCumPct(long)">getCumPct</a></strong>(long&nbsp;v)</code>
 <div class="block">Returns the cumulative percentage of values less than or equal to v
  (as a proportion between 0 and 1).</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&gt;</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getMode()">getMode</a></strong>()</code>
 <div class="block">Returns the mode value(s) in comparator order.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>double</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getPct(char)">getPct</a></strong>(char&nbsp;v)</code>
 <div class="block">Returns the percentage of values that are equal to v
  (as a proportion between 0 and 1).</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>double</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getPct(java.lang.Comparable)">getPct</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&nbsp;v)</code>
 <div class="block">Returns the percentage of values that are equal to v
  (as a proportion between 0 and 1).</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>double</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getPct(int)">getPct</a></strong>(int&nbsp;v)</code>
 <div class="block">Returns the percentage of values that are equal to v
  (as a proportion between 0 and 1).</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>double</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getPct(long)">getPct</a></strong>(long&nbsp;v)</code>
 <div class="block">Returns the percentage of values that are equal to v
  (as a proportion between 0 and 1).</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>long</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getSumFreq()">getSumFreq</a></strong>()</code>
 <div class="block">Returns the sum of all frequencies.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#getUniqueCount()">getUniqueCount</a></strong>()</code>
 <div class="block">Returns the number of values in the frequency table.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#hashCode()">hashCode</a></strong>()</code></td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#incrementValue(char, long)">incrementValue</a></strong>(char&nbsp;v,
               long&nbsp;increment)</code>
 <div class="block">Increments the frequency count for v.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#incrementValue(java.lang.Comparable, long)">incrementValue</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&nbsp;v,
               long&nbsp;increment)</code>
 <div class="block">Increments the frequency count for v.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#incrementValue(int, long)">incrementValue</a></strong>(int&nbsp;v,
               long&nbsp;increment)</code>
 <div class="block">Increments the frequency count for v.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#incrementValue(long, long)">incrementValue</a></strong>(long&nbsp;v,
               long&nbsp;increment)</code>
 <div class="block">Increments the frequency count for v.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#merge(java.util.Collection)">merge</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../../org/apache/commons/math3/stat/Frequency.html" title="class in org.apache.commons.math3.stat">Frequency</a>&gt;&nbsp;others)</code>
 <div class="block">Merge a <a href="http://docs.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util"><code>Collection</code></a> of <a href="../../../../../org/apache/commons/math3/stat/Frequency.html" title="class in org.apache.commons.math3.stat"><code>Frequency</code></a> objects into this instance.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#merge(org.apache.commons.math3.stat.Frequency)">merge</a></strong>(<a href="../../../../../org/apache/commons/math3/stat/Frequency.html" title="class in org.apache.commons.math3.stat">Frequency</a>&nbsp;other)</code>
 <div class="block">Merge another Frequency object's counts into this instance.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#toString()">toString</a></strong>()</code>
 <div class="block">Return a string representation of this frequency distribution.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a>&lt;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&gt;</code></td>
 <td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#valuesIterator()">valuesIterator</a></strong>()</code>
 <div class="block">Returns an Iterator over the set of values that have been added.</div>
 </td>
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 <code><a href="http://docs.oracle.com/javase/6/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/6/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/6/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/6/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/6/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/6/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/6/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/6/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;Frequency()</pre>
 <div class="block">Default constructor.</div>
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 <pre>public&nbsp;Frequency(<a href="http://docs.oracle.com/javase/6/docs/api/java/util/Comparator.html?is-external=true" title="class or interface in java.util">Comparator</a>&lt;?&gt;&nbsp;comparator)</pre>
 <div class="block">Constructor allowing values Comparator to be specified.</div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>comparator</code> - Comparator used to order values</dd></dl>
 </li>
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 <pre>public&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;toString()</pre>
 <div class="block">Return a string representation of this frequency distribution.</div>
 <dl>
 <dt><strong>Overrides:</strong></dt>
 <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a></code>&nbsp;in class&nbsp;<code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
 <dt><span class="strong">Returns:</span></dt><dd>a string representation.</dd></dl>
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 <pre>public&nbsp;void&nbsp;addValue(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&nbsp;v)
               throws <a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></pre>
 <div class="block">Adds 1 to the frequency count for v.
  <p>
  If other objects have already been added to this Frequency, v must
  be comparable to those that have already been added.
  </p></div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to add.</dd>
 <dt><span class="strong">Throws:</span></dt>
 <dd><code><a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></code> - if <code>v</code> is not comparable with previous entries</dd></dl>
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 <pre>public&nbsp;void&nbsp;addValue(int&nbsp;v)
               throws <a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></pre>
 <div class="block">Adds 1 to the frequency count for v.</div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to add.</dd>
 <dt><span class="strong">Throws:</span></dt>
 <dd><code><a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></code> - if the table contains entries not
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               throws <a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></pre>
 <div class="block">Adds 1 to the frequency count for v.</div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to add.</dd>
 <dt><span class="strong">Throws:</span></dt>
 <dd><code><a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></code> - if the table contains entries not
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 <div class="block">Adds 1 to the frequency count for v.</div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to add.</dd>
 <dt><span class="strong">Throws:</span></dt>
 <dd><code><a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></code> - if the table contains entries not
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 <pre>public&nbsp;void&nbsp;incrementValue(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&nbsp;v,
                   long&nbsp;increment)
                     throws <a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></pre>
 <div class="block">Increments the frequency count for v.
  <p>
  If other objects have already been added to this Frequency, v must
  be comparable to those that have already been added.
  </p></div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to add.</dd><dd><code>increment</code> - the amount by which the value should be incremented</dd>
 <dt><span class="strong">Throws:</span></dt>
 <dd><code><a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></code> - if <code>v</code> is not comparable with previous entries</dd><dt><span class="strong">Since:</span></dt>
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                   long&nbsp;increment)
                     throws <a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></pre>
 <div class="block">Increments the frequency count for v.
  <p>
  If other objects have already been added to this Frequency, v must
  be comparable to those that have already been added.
  </p></div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to add.</dd><dd><code>increment</code> - the amount by which the value should be incremented</dd>
 <dt><span class="strong">Throws:</span></dt>
 <dd><code><a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></code> - if the table contains entries not
  comparable to Long</dd><dt><span class="strong">Since:</span></dt>
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 <pre>public&nbsp;void&nbsp;incrementValue(long&nbsp;v,
                   long&nbsp;increment)
                     throws <a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></pre>
 <div class="block">Increments the frequency count for v.
  <p>
  If other objects have already been added to this Frequency, v must
  be comparable to those that have already been added.
  </p></div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to add.</dd><dd><code>increment</code> - the amount by which the value should be incremented</dd>
 <dt><span class="strong">Throws:</span></dt>
 <dd><code><a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></code> - if the table contains entries not
  comparable to Long</dd><dt><span class="strong">Since:</span></dt>
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 <pre>public&nbsp;void&nbsp;incrementValue(char&nbsp;v,
                   long&nbsp;increment)
                     throws <a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></pre>
 <div class="block">Increments the frequency count for v.
  <p>
  If other objects have already been added to this Frequency, v must
  be comparable to those that have already been added.
  </p></div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to add.</dd><dd><code>increment</code> - the amount by which the value should be incremented</dd>
 <dt><span class="strong">Throws:</span></dt>
 <dd><code><a href="../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></code> - if the table contains entries not
  comparable to Char</dd><dt><span class="strong">Since:</span></dt>
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 <h4>clear</h4>
 <pre>public&nbsp;void&nbsp;clear()</pre>
 <div class="block">Clears the frequency table</div>
 </li>
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 <h4>valuesIterator</h4>
 <pre>public&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a>&lt;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&gt;&nbsp;valuesIterator()</pre>
 <div class="block">Returns an Iterator over the set of values that have been added.
  <p>
  If added values are integral (i.e., integers, longs, Integers, or Longs),
  they are converted to Longs when they are added, so the objects returned
  by the Iterator will in this case be Longs.</p></div>
 <dl><dt><span class="strong">Returns:</span></dt><dd>values Iterator</dd></dl>
 </li>
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 <a name="entrySetIterator()">
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 <h4>entrySetIterator</h4>
 <pre>public&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a>&lt;<a href="http://docs.oracle.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</a>&lt;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;,<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>&gt;&gt;&nbsp;entrySetIterator()</pre>
 <div class="block">Return an Iterator over the set of keys and values that have been added.
  Using the entry set to iterate is more efficient in the case where you
  need to access respective counts as well as values, since it doesn't
  require a "get" for every key...the value is provided in the Map.Entry.
  <p>
  If added values are integral (i.e., integers, longs, Integers, or Longs),
  they are converted to Longs when they are added, so the values of the
  map entries returned by the Iterator will in this case be Longs.</p></div>
 <dl><dt><span class="strong">Returns:</span></dt><dd>entry set Iterator</dd><dt><span class="strong">Since:</span></dt>
   <dd>3.1</dd></dl>
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 <pre>public&nbsp;long&nbsp;getSumFreq()</pre>
 <div class="block">Returns the sum of all frequencies.</div>
 <dl><dt><span class="strong">Returns:</span></dt><dd>the total frequency count.</dd></dl>
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 <pre>public&nbsp;long&nbsp;getCount(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&nbsp;v)</pre>
 <div class="block">Returns the number of values equal to v.
  Returns 0 if the value is not comparable.</div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup.</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the frequency of v.</dd></dl>
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 <pre>public&nbsp;long&nbsp;getCount(int&nbsp;v)</pre>
 <div class="block">Returns the number of values equal to v.</div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup.</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the frequency of v.</dd></dl>
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 <pre>public&nbsp;long&nbsp;getCount(long&nbsp;v)</pre>
 <div class="block">Returns the number of values equal to v.</div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup.</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the frequency of v.</dd></dl>
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 <pre>public&nbsp;long&nbsp;getCount(char&nbsp;v)</pre>
 <div class="block">Returns the number of values equal to v.</div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup.</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the frequency of v.</dd></dl>
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 <pre>public&nbsp;int&nbsp;getUniqueCount()</pre>
 <div class="block">Returns the number of values in the frequency table.</div>
 <dl><dt><span class="strong">Returns:</span></dt><dd>the number of unique values that have been added to the frequency table.</dd><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../org/apache/commons/math3/stat/Frequency.html#valuesIterator()"><code>valuesIterator()</code></a></dd></dl>
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 <pre>public&nbsp;double&nbsp;getPct(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&nbsp;v)</pre>
 <div class="block">Returns the percentage of values that are equal to v
  (as a proportion between 0 and 1).
  <p>
  Returns <code>Double.NaN</code> if no values have been added.
  Returns 0 if at least one value has been added, but v is not comparable
  to the values set.</p></div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the proportion of values equal to v</dd></dl>
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 <pre>public&nbsp;double&nbsp;getPct(int&nbsp;v)</pre>
 <div class="block">Returns the percentage of values that are equal to v
  (as a proportion between 0 and 1).</div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the proportion of values equal to v</dd></dl>
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 <pre>public&nbsp;double&nbsp;getPct(long&nbsp;v)</pre>
 <div class="block">Returns the percentage of values that are equal to v
  (as a proportion between 0 and 1).</div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the proportion of values equal to v</dd></dl>
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 <pre>public&nbsp;double&nbsp;getPct(char&nbsp;v)</pre>
 <div class="block">Returns the percentage of values that are equal to v
  (as a proportion between 0 and 1).</div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the proportion of values equal to v</dd></dl>
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 <pre>public&nbsp;long&nbsp;getCumFreq(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&nbsp;v)</pre>
 <div class="block">Returns the cumulative frequency of values less than or equal to v.
  <p>
  Returns 0 if v is not comparable to the values set.</p></div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup.</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the proportion of values equal to v</dd></dl>
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 <pre>public&nbsp;long&nbsp;getCumFreq(int&nbsp;v)</pre>
 <div class="block">Returns the cumulative frequency of values less than or equal to v.
  <p>
  Returns 0 if v is not comparable to the values set.</p></div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the proportion of values equal to v</dd></dl>
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 <pre>public&nbsp;long&nbsp;getCumFreq(long&nbsp;v)</pre>
 <div class="block">Returns the cumulative frequency of values less than or equal to v.
  <p>
  Returns 0 if v is not comparable to the values set.</p></div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the proportion of values equal to v</dd></dl>
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 <pre>public&nbsp;long&nbsp;getCumFreq(char&nbsp;v)</pre>
 <div class="block">Returns the cumulative frequency of values less than or equal to v.
  <p>
  Returns 0 if v is not comparable to the values set.</p></div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the proportion of values equal to v</dd></dl>
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 <pre>public&nbsp;double&nbsp;getCumPct(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&nbsp;v)</pre>
 <div class="block">Returns the cumulative percentage of values less than or equal to v
  (as a proportion between 0 and 1).
  <p>
  Returns <code>Double.NaN</code> if no values have been added.
  Returns 0 if at least one value has been added, but v is not comparable
  to the values set.</p></div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the proportion of values less than or equal to v</dd></dl>
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 <pre>public&nbsp;double&nbsp;getCumPct(int&nbsp;v)</pre>
 <div class="block">Returns the cumulative percentage of values less than or equal to v
  (as a proportion between 0 and 1).
  <p>
  Returns 0 if v is not comparable to the values set.</p></div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the proportion of values less than or equal to v</dd></dl>
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 <pre>public&nbsp;double&nbsp;getCumPct(long&nbsp;v)</pre>
 <div class="block">Returns the cumulative percentage of values less than or equal to v
  (as a proportion between 0 and 1).
  <p>
  Returns 0 if v is not comparable to the values set.</p></div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the proportion of values less than or equal to v</dd></dl>
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 <div class="block">Returns the cumulative percentage of values less than or equal to v
  (as a proportion between 0 and 1).
  <p>
  Returns 0 if v is not comparable to the values set.</p></div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to lookup</dd>
 <dt><span class="strong">Returns:</span></dt><dd>the proportion of values less than or equal to v</dd></dl>
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 <pre>public&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;?&gt;&gt;&nbsp;getMode()</pre>
 <div class="block">Returns the mode value(s) in comparator order.</div>
 <dl><dt><span class="strong">Returns:</span></dt><dd>a list containing the value(s) which appear most often.</dd><dt><span class="strong">Since:</span></dt>
   <dd>3.3</dd></dl>
 </li>
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 <h4>merge</h4>
 <pre>public&nbsp;void&nbsp;merge(<a href="../../../../../org/apache/commons/math3/stat/Frequency.html" title="class in org.apache.commons.math3.stat">Frequency</a>&nbsp;other)
            throws <a href="../../../../../org/apache/commons/math3/exception/NullArgumentException.html" title="class in org.apache.commons.math3.exception">NullArgumentException</a></pre>
 <div class="block">Merge another Frequency object's counts into this instance.
  This Frequency's counts will be incremented (or set when not already set)
  by the counts represented by other.</div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>other</code> - the other <a href="../../../../../org/apache/commons/math3/stat/Frequency.html" title="class in org.apache.commons.math3.stat"><code>Frequency</code></a> object to be merged</dd>
 <dt><span class="strong">Throws:</span></dt>
 <dd><code><a href="../../../../../org/apache/commons/math3/exception/NullArgumentException.html" title="class in org.apache.commons.math3.exception">NullArgumentException</a></code> - if <code>other</code> is null</dd><dt><span class="strong">Since:</span></dt>
   <dd>3.1</dd></dl>
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 <h4>merge</h4>
 <pre>public&nbsp;void&nbsp;merge(<a href="http://docs.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../../org/apache/commons/math3/stat/Frequency.html" title="class in org.apache.commons.math3.stat">Frequency</a>&gt;&nbsp;others)
            throws <a href="../../../../../org/apache/commons/math3/exception/NullArgumentException.html" title="class in org.apache.commons.math3.exception">NullArgumentException</a></pre>
 <div class="block">Merge a <a href="http://docs.oracle.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util"><code>Collection</code></a> of <a href="../../../../../org/apache/commons/math3/stat/Frequency.html" title="class in org.apache.commons.math3.stat"><code>Frequency</code></a> objects into this instance.
  This Frequency's counts will be incremented (or set when not already set)
  by the counts represented by each of the others.</div>
 <dl><dt><span class="strong">Parameters:</span></dt><dd><code>others</code> - the other <a href="../../../../../org/apache/commons/math3/stat/Frequency.html" title="class in org.apache.commons.math3.stat"><code>Frequency</code></a> objects to be merged</dd>
 <dt><span class="strong">Throws:</span></dt>
 <dd><code><a href="../../../../../org/apache/commons/math3/exception/NullArgumentException.html" title="class in org.apache.commons.math3.exception">NullArgumentException</a></code> - if the collection is null</dd><dt><span class="strong">Since:</span></dt>
   <dd>3.1</dd></dl>
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 <h4>hashCode</h4>
 <pre>public&nbsp;int&nbsp;hashCode()</pre>
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 <dt><strong>Overrides:</strong></dt>
 <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a></code>&nbsp;in class&nbsp;<code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
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 <pre>public&nbsp;boolean&nbsp;equals(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;obj)</pre>
 <dl>
 <dt><strong>Overrides:</strong></dt>
 <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a></code>&nbsp;in class&nbsp;<code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
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