commons-math3-3.6.1/docs/apidocs/org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html


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<h2 title="Class DescriptiveStatistics" class="title">Class DescriptiveStatistics</h2>
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<dd><a href="../../../../../../org/apache/commons/math3/stat/descriptive/SynchronizedDescriptiveStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">SynchronizedDescriptiveStatistics</a></dd>
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<pre>public class <span class="strong">DescriptiveStatistics</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>
implements <a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.commons.math3.stat.descriptive">StatisticalSummary</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a></pre>
<div class="block">Maintains a dataset of values of a single variable and computes descriptive
 statistics based on stored data. The <a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getWindowSize()"><code>windowSize</code></a>
 property sets a limit on the number of values that can be stored in the
 dataset.  The default value, INFINITE_WINDOW, puts no limit on the size of
 the dataset.  This value should be used with caution, as the backing store
 will grow without bound in this case.  For very large datasets,
 <a href="../../../../../../org/apache/commons/math3/stat/descriptive/SummaryStatistics.html" title="class in org.apache.commons.math3.stat.descriptive"><code>SummaryStatistics</code></a>, which does not store the dataset, should be used
 instead of this class. If <code>windowSize</code> is not INFINITE_WINDOW and
 more values are added than can be stored in the dataset, new values are
 added in a "rolling" manner, with new values replacing the "oldest" values
 in the dataset.

 <p>Note: this class is not threadsafe.  Use
 <a href="../../../../../../org/apache/commons/math3/stat/descriptive/SynchronizedDescriptiveStatistics.html" title="class in org.apache.commons.math3.stat.descriptive"><code>SynchronizedDescriptiveStatistics</code></a> if concurrent access from multiple
 threads is required.</p></div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../../serialized-form.html#org.apache.commons.math3.stat.descriptive.DescriptiveStatistics">Serialized Form</a></dd></dl>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#INFINITE_WINDOW">INFINITE_WINDOW</a></strong></code>
<div class="block">Represents an infinite window size.</div>
</td>
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<td class="colFirst"><code>protected int</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#windowSize">windowSize</a></strong></code>
<div class="block">hold the window size</div>
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<td class="colOne"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#DescriptiveStatistics()">DescriptiveStatistics</a></strong>()</code>
<div class="block">Construct a DescriptiveStatistics instance with an infinite window</div>
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<td class="colOne"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#DescriptiveStatistics(org.apache.commons.math3.stat.descriptive.DescriptiveStatistics)">DescriptiveStatistics</a></strong>(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">DescriptiveStatistics</a>&nbsp;original)</code>
<div class="block">Copy constructor.</div>
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<td class="colOne"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#DescriptiveStatistics(double[])">DescriptiveStatistics</a></strong>(double[]&nbsp;initialDoubleArray)</code>
<div class="block">Construct a DescriptiveStatistics instance with an infinite window
 and the initial data values in double[] initialDoubleArray.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#DescriptiveStatistics(int)">DescriptiveStatistics</a></strong>(int&nbsp;window)</code>
<div class="block">Construct a DescriptiveStatistics instance with the specified window</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#addValue(double)">addValue</a></strong>(double&nbsp;v)</code>
<div class="block">Adds the value to the dataset.</div>
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<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#apply(org.apache.commons.math3.stat.descriptive.UnivariateStatistic)">apply</a></strong>(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;stat)</code>
<div class="block">Apply the given statistic to the data associated with this set of statistics.</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/descriptive/DescriptiveStatistics.html#clear()">clear</a></strong>()</code>
<div class="block">Resets all statistics and storage</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">DescriptiveStatistics</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#copy()">copy</a></strong>()</code>
<div class="block">Returns a copy of this DescriptiveStatistics instance with the same internal state.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#copy(org.apache.commons.math3.stat.descriptive.DescriptiveStatistics,%20org.apache.commons.math3.stat.descriptive.DescriptiveStatistics)">copy</a></strong>(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">DescriptiveStatistics</a>&nbsp;source,
    <a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">DescriptiveStatistics</a>&nbsp;dest)</code>
<div class="block">Copies source to dest.</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/descriptive/DescriptiveStatistics.html#getElement(int)">getElement</a></strong>(int&nbsp;index)</code>
<div class="block">Returns the element at the specified index</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/descriptive/DescriptiveStatistics.html#getGeometricMean()">getGeometricMean</a></strong>()</code>
<div class="block">Returns the <a href="http://www.xycoon.com/geometric_mean.htm">
 geometric mean </a> of the available values.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getGeometricMeanImpl()">getGeometricMeanImpl</a></strong>()</code>
<div class="block">Returns the currently configured geometric mean implementation.</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/descriptive/DescriptiveStatistics.html#getKurtosis()">getKurtosis</a></strong>()</code>
<div class="block">Returns the Kurtosis of the available values.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getKurtosisImpl()">getKurtosisImpl</a></strong>()</code>
<div class="block">Returns the currently configured kurtosis implementation.</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/descriptive/DescriptiveStatistics.html#getMax()">getMax</a></strong>()</code>
<div class="block">Returns the maximum of the available values</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getMaxImpl()">getMaxImpl</a></strong>()</code>
<div class="block">Returns the currently configured maximum implementation.</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/descriptive/DescriptiveStatistics.html#getMean()">getMean</a></strong>()</code>
<div class="block">Returns the <a href="http://www.xycoon.com/arithmetic_mean.htm">
 arithmetic mean </a> of the available values</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getMeanImpl()">getMeanImpl</a></strong>()</code>
<div class="block">Returns the currently configured mean implementation.</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/descriptive/DescriptiveStatistics.html#getMin()">getMin</a></strong>()</code>
<div class="block">Returns the minimum of the available values</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getMinImpl()">getMinImpl</a></strong>()</code>
<div class="block">Returns the currently configured minimum implementation.</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/descriptive/DescriptiveStatistics.html#getN()">getN</a></strong>()</code>
<div class="block">Returns the number of available values</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/descriptive/DescriptiveStatistics.html#getPercentile(double)">getPercentile</a></strong>(double&nbsp;p)</code>
<div class="block">Returns an estimate for the pth percentile of the stored values.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getPercentileImpl()">getPercentileImpl</a></strong>()</code>
<div class="block">Returns the currently configured percentile implementation.</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/descriptive/DescriptiveStatistics.html#getPopulationVariance()">getPopulationVariance</a></strong>()</code>
<div class="block">Returns the <a href="http://en.wikibooks.org/wiki/Statistics/Summary/Variance">
 population variance</a> of the available values.</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/descriptive/DescriptiveStatistics.html#getQuadraticMean()">getQuadraticMean</a></strong>()</code>
<div class="block">Returns the quadratic mean, a.k.a.</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/descriptive/DescriptiveStatistics.html#getSkewness()">getSkewness</a></strong>()</code>
<div class="block">Returns the skewness of the available values.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getSkewnessImpl()">getSkewnessImpl</a></strong>()</code>
<div class="block">Returns the currently configured skewness implementation.</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/descriptive/DescriptiveStatistics.html#getSortedValues()">getSortedValues</a></strong>()</code>
<div class="block">Returns the current set of values in an array of double primitives,
 sorted in ascending 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/descriptive/DescriptiveStatistics.html#getStandardDeviation()">getStandardDeviation</a></strong>()</code>
<div class="block">Returns the standard deviation of the available values.</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/descriptive/DescriptiveStatistics.html#getSum()">getSum</a></strong>()</code>
<div class="block">Returns the sum of the values that have been added to Univariate.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getSumImpl()">getSumImpl</a></strong>()</code>
<div class="block">Returns the currently configured sum implementation.</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/descriptive/DescriptiveStatistics.html#getSumsq()">getSumsq</a></strong>()</code>
<div class="block">Returns the sum of the squares of the available values.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getSumsqImpl()">getSumsqImpl</a></strong>()</code>
<div class="block">Returns the currently configured sum of squares implementation.</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/descriptive/DescriptiveStatistics.html#getValues()">getValues</a></strong>()</code>
<div class="block">Returns the current set of values in an array of double primitives.</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/descriptive/DescriptiveStatistics.html#getVariance()">getVariance</a></strong>()</code>
<div class="block">Returns the (sample) variance of the available values.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getVarianceImpl()">getVarianceImpl</a></strong>()</code>
<div class="block">Returns the currently configured variance implementation.</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/descriptive/DescriptiveStatistics.html#getWindowSize()">getWindowSize</a></strong>()</code>
<div class="block">Returns the maximum number of values that can be stored in the
 dataset, or INFINITE_WINDOW (-1) if there is no limit.</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/descriptive/DescriptiveStatistics.html#removeMostRecentValue()">removeMostRecentValue</a></strong>()</code>
<div class="block">Removes the most recent value from the dataset.</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/descriptive/DescriptiveStatistics.html#replaceMostRecentValue(double)">replaceMostRecentValue</a></strong>(double&nbsp;v)</code>
<div class="block">Replaces the most recently stored value with the given value.</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/descriptive/DescriptiveStatistics.html#setGeometricMeanImpl(org.apache.commons.math3.stat.descriptive.UnivariateStatistic)">setGeometricMeanImpl</a></strong>(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;geometricMeanImpl)</code>
<div class="block">Sets the implementation for the gemoetric mean.</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/descriptive/DescriptiveStatistics.html#setKurtosisImpl(org.apache.commons.math3.stat.descriptive.UnivariateStatistic)">setKurtosisImpl</a></strong>(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;kurtosisImpl)</code>
<div class="block">Sets the implementation for the kurtosis.</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/descriptive/DescriptiveStatistics.html#setMaxImpl(org.apache.commons.math3.stat.descriptive.UnivariateStatistic)">setMaxImpl</a></strong>(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;maxImpl)</code>
<div class="block">Sets the implementation for the maximum.</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/descriptive/DescriptiveStatistics.html#setMeanImpl(org.apache.commons.math3.stat.descriptive.UnivariateStatistic)">setMeanImpl</a></strong>(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;meanImpl)</code>
<div class="block">Sets the implementation for the mean.</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/descriptive/DescriptiveStatistics.html#setMinImpl(org.apache.commons.math3.stat.descriptive.UnivariateStatistic)">setMinImpl</a></strong>(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;minImpl)</code>
<div class="block">Sets the implementation for the minimum.</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/descriptive/DescriptiveStatistics.html#setPercentileImpl(org.apache.commons.math3.stat.descriptive.UnivariateStatistic)">setPercentileImpl</a></strong>(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;percentileImpl)</code>
<div class="block">Sets the implementation to be used by <a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getPercentile(double)"><code>getPercentile(double)</code></a>.</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/descriptive/DescriptiveStatistics.html#setSkewnessImpl(org.apache.commons.math3.stat.descriptive.UnivariateStatistic)">setSkewnessImpl</a></strong>(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;skewnessImpl)</code>
<div class="block">Sets the implementation for the skewness.</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/descriptive/DescriptiveStatistics.html#setSumImpl(org.apache.commons.math3.stat.descriptive.UnivariateStatistic)">setSumImpl</a></strong>(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;sumImpl)</code>
<div class="block">Sets the implementation for the sum.</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/descriptive/DescriptiveStatistics.html#setSumsqImpl(org.apache.commons.math3.stat.descriptive.UnivariateStatistic)">setSumsqImpl</a></strong>(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;sumsqImpl)</code>
<div class="block">Sets the implementation for the sum of squares.</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/descriptive/DescriptiveStatistics.html#setVarianceImpl(org.apache.commons.math3.stat.descriptive.UnivariateStatistic)">setVarianceImpl</a></strong>(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;varianceImpl)</code>
<div class="block">Sets the implementation for the variance.</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/descriptive/DescriptiveStatistics.html#setWindowSize(int)">setWindowSize</a></strong>(int&nbsp;windowSize)</code>
<div class="block">WindowSize controls the number of values that contribute to the
 reported statistics.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><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><strong><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#toString()">toString</a></strong>()</code>
<div class="block">Generates a text report displaying univariate statistics from values
 that have been added.</div>
</td>
</tr>
</table>
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<h3>Methods inherited from class&nbsp;java.lang.<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></h3>
<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#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,%20int)" title="class or interface in java.lang">wait</a></code></li>
</ul>
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<h3>Field Detail</h3>
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<h4>INFINITE_WINDOW</h4>
<pre>public static final&nbsp;int INFINITE_WINDOW</pre>
<div class="block">Represents an infinite window size.  When the <a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getWindowSize()"><code>getWindowSize()</code></a>
 returns this value, there is no limit to the number of data values
 that can be stored in the dataset.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../../constant-values.html#org.apache.commons.math3.stat.descriptive.DescriptiveStatistics.INFINITE_WINDOW">Constant Field Values</a></dd></dl>
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<h4>windowSize</h4>
<pre>protected&nbsp;int windowSize</pre>
<div class="block">hold the window size</div>
</li>
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<h4>DescriptiveStatistics</h4>
<pre>public&nbsp;DescriptiveStatistics()</pre>
<div class="block">Construct a DescriptiveStatistics instance with an infinite window</div>
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<a name="DescriptiveStatistics(int)">
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<pre>public&nbsp;DescriptiveStatistics(int&nbsp;window)
                      throws <a href="../../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></pre>
<div class="block">Construct a DescriptiveStatistics instance with the specified window</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>window</code> - the window size.</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 window size is less than 1 but
 not equal to <a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#INFINITE_WINDOW"><code>INFINITE_WINDOW</code></a></dd></dl>
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<h4>DescriptiveStatistics</h4>
<pre>public&nbsp;DescriptiveStatistics(double[]&nbsp;initialDoubleArray)</pre>
<div class="block">Construct a DescriptiveStatistics instance with an infinite window
 and the initial data values in double[] initialDoubleArray.
 If initialDoubleArray is null, then this constructor corresponds to
 DescriptiveStatistics()</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>initialDoubleArray</code> - the initial double[].</dd></dl>
</li>
</ul>
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<h4>DescriptiveStatistics</h4>
<pre>public&nbsp;DescriptiveStatistics(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">DescriptiveStatistics</a>&nbsp;original)
                      throws <a href="../../../../../../org/apache/commons/math3/exception/NullArgumentException.html" title="class in org.apache.commons.math3.exception">NullArgumentException</a></pre>
<div class="block">Copy constructor.  Construct a new DescriptiveStatistics instance that
 is a copy of original.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>original</code> - DescriptiveStatistics instance to copy</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 original is null</dd></dl>
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<h3>Method Detail</h3>
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<h4>addValue</h4>
<pre>public&nbsp;void&nbsp;addValue(double&nbsp;v)</pre>
<div class="block">Adds the value to the dataset. If the dataset is at the maximum size
 (i.e., the number of stored elements equals the currently configured
 windowSize), the first (oldest) element in the dataset is discarded
 to make room for the new value.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to be added</dd></dl>
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<h4>removeMostRecentValue</h4>
<pre>public&nbsp;void&nbsp;removeMostRecentValue()
                           throws <a href="../../../../../../org/apache/commons/math3/exception/MathIllegalStateException.html" title="class in org.apache.commons.math3.exception">MathIllegalStateException</a></pre>
<div class="block">Removes the most recent value from the dataset.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/exception/MathIllegalStateException.html" title="class in org.apache.commons.math3.exception">MathIllegalStateException</a></code> - if there are no elements stored</dd></dl>
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<a name="replaceMostRecentValue(double)">
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<h4>replaceMostRecentValue</h4>
<pre>public&nbsp;double&nbsp;replaceMostRecentValue(double&nbsp;v)
                              throws <a href="../../../../../../org/apache/commons/math3/exception/MathIllegalStateException.html" title="class in org.apache.commons.math3.exception">MathIllegalStateException</a></pre>
<div class="block">Replaces the most recently stored value with the given value.
 There must be at least one element stored to call this method.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>v</code> - the value to replace the most recent stored value</dd>
<dt><span class="strong">Returns:</span></dt><dd>replaced value</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/exception/MathIllegalStateException.html" title="class in org.apache.commons.math3.exception">MathIllegalStateException</a></code> - if there are no elements stored</dd></dl>
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<h4>getMean</h4>
<pre>public&nbsp;double&nbsp;getMean()</pre>
<div class="block">Returns the <a href="http://www.xycoon.com/arithmetic_mean.htm">
 arithmetic mean </a> of the available values</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html#getMean()">getMean</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.commons.math3.stat.descriptive">StatisticalSummary</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>The mean or Double.NaN if no values have been added.</dd></dl>
</li>
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<h4>getGeometricMean</h4>
<pre>public&nbsp;double&nbsp;getGeometricMean()</pre>
<div class="block">Returns the <a href="http://www.xycoon.com/geometric_mean.htm">
 geometric mean </a> of the available values.
 <p>
 See <a href="../../../../../../org/apache/commons/math3/stat/descriptive/moment/GeometricMean.html" title="class in org.apache.commons.math3.stat.descriptive.moment"><code>GeometricMean</code></a> for details on the computing algorithm.</p></div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The geometricMean, Double.NaN if no values have been added,
 or if any negative values have been added.</dd></dl>
</li>
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<pre>public&nbsp;double&nbsp;getVariance()</pre>
<div class="block">Returns the (sample) variance of the available values.

 <p>This method returns the bias-corrected sample variance (using <code>n - 1</code> in
 the denominator).  Use <a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getPopulationVariance()"><code>getPopulationVariance()</code></a> for the non-bias-corrected
 population variance.</p></div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html#getVariance()">getVariance</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.commons.math3.stat.descriptive">StatisticalSummary</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>The variance, Double.NaN if no values have been added
 or 0.0 for a single value set.</dd></dl>
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<h4>getPopulationVariance</h4>
<pre>public&nbsp;double&nbsp;getPopulationVariance()</pre>
<div class="block">Returns the <a href="http://en.wikibooks.org/wiki/Statistics/Summary/Variance">
 population variance</a> of the available values.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The population variance, Double.NaN if no values have been added,
 or 0.0 for a single value set.</dd></dl>
</li>
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<h4>getStandardDeviation</h4>
<pre>public&nbsp;double&nbsp;getStandardDeviation()</pre>
<div class="block">Returns the standard deviation of the available values.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html#getStandardDeviation()">getStandardDeviation</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.commons.math3.stat.descriptive">StatisticalSummary</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>The standard deviation, Double.NaN if no values have been added
 or 0.0 for a single value set.</dd></dl>
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<h4>getQuadraticMean</h4>
<pre>public&nbsp;double&nbsp;getQuadraticMean()</pre>
<div class="block">Returns the quadratic mean, a.k.a.
 <a href="http://mathworld.wolfram.com/Root-Mean-Square.html">
 root-mean-square</a> of the available values</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The quadratic mean or <code>Double.NaN</code> if no values
 have been added.</dd></dl>
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<pre>public&nbsp;double&nbsp;getSkewness()</pre>
<div class="block">Returns the skewness of the available values. Skewness is a
 measure of the asymmetry of a given distribution.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The skewness, Double.NaN if less than 3 values have been added.</dd></dl>
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<pre>public&nbsp;double&nbsp;getKurtosis()</pre>
<div class="block">Returns the Kurtosis of the available values. Kurtosis is a
 measure of the "peakedness" of a distribution.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The kurtosis, Double.NaN if less than 4 values have been added.</dd></dl>
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<pre>public&nbsp;double&nbsp;getMax()</pre>
<div class="block">Returns the maximum of the available values</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html#getMax()">getMax</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.commons.math3.stat.descriptive">StatisticalSummary</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>The max or Double.NaN if no values have been added.</dd></dl>
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<h4>getMin</h4>
<pre>public&nbsp;double&nbsp;getMin()</pre>
<div class="block">Returns the minimum of the available values</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html#getMin()">getMin</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.commons.math3.stat.descriptive">StatisticalSummary</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>The min or Double.NaN if no values have been added.</dd></dl>
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<h4>getN</h4>
<pre>public&nbsp;long&nbsp;getN()</pre>
<div class="block">Returns the number of available values</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html#getN()">getN</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.commons.math3.stat.descriptive">StatisticalSummary</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>The number of available values</dd></dl>
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<pre>public&nbsp;double&nbsp;getSum()</pre>
<div class="block">Returns the sum of the values that have been added to Univariate.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html#getSum()">getSum</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.commons.math3.stat.descriptive">StatisticalSummary</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>The sum or Double.NaN if no values have been added</dd></dl>
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<pre>public&nbsp;double&nbsp;getSumsq()</pre>
<div class="block">Returns the sum of the squares of the available values.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The sum of the squares or Double.NaN if no
 values have been added.</dd></dl>
</li>
</ul>
<a name="clear()">
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<h4>clear</h4>
<pre>public&nbsp;void&nbsp;clear()</pre>
<div class="block">Resets all statistics and storage</div>
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<h4>getWindowSize</h4>
<pre>public&nbsp;int&nbsp;getWindowSize()</pre>
<div class="block">Returns the maximum number of values that can be stored in the
 dataset, or INFINITE_WINDOW (-1) if there is no limit.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The current window size or -1 if its Infinite.</dd></dl>
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<h4>setWindowSize</h4>
<pre>public&nbsp;void&nbsp;setWindowSize(int&nbsp;windowSize)
                   throws <a href="../../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></pre>
<div class="block">WindowSize controls the number of values that contribute to the
 reported statistics.  For example, if windowSize is set to 3 and the
 values {1,2,3,4,5} have been added <strong> in that order</strong> then
 the <i>available values</i> are {3,4,5} and all reported statistics will
 be based on these values. If <code>windowSize</code> is decreased as a result
 of this call and there are more than the new value of elements in the
 current dataset, values from the front of the array are discarded to
 reduce the dataset to <code>windowSize</code> elements.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>windowSize</code> - sets the size of the window.</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 window size is less than 1 but
 not equal to <a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#INFINITE_WINDOW"><code>INFINITE_WINDOW</code></a></dd></dl>
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<h4>getValues</h4>
<pre>public&nbsp;double[]&nbsp;getValues()</pre>
<div class="block">Returns the current set of values in an array of double primitives.
 The order of addition is preserved.  The returned array is a fresh
 copy of the underlying data -- i.e., it is not a reference to the
 stored data.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>returns the current set of numbers in the order in which they
         were added to this set</dd></dl>
</li>
</ul>
<a name="getSortedValues()">
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<h4>getSortedValues</h4>
<pre>public&nbsp;double[]&nbsp;getSortedValues()</pre>
<div class="block">Returns the current set of values in an array of double primitives,
 sorted in ascending order.  The returned array is a fresh
 copy of the underlying data -- i.e., it is not a reference to the
 stored data.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>returns the current set of
 numbers sorted in ascending order</dd></dl>
</li>
</ul>
<a name="getElement(int)">
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<h4>getElement</h4>
<pre>public&nbsp;double&nbsp;getElement(int&nbsp;index)</pre>
<div class="block">Returns the element at the specified index</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>index</code> - The Index of the element</dd>
<dt><span class="strong">Returns:</span></dt><dd>return the element at the specified index</dd></dl>
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<a name="getPercentile(double)">
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<h4>getPercentile</h4>
<pre>public&nbsp;double&nbsp;getPercentile(double&nbsp;p)
                     throws <a href="../../../../../../org/apache/commons/math3/exception/MathIllegalStateException.html" title="class in org.apache.commons.math3.exception">MathIllegalStateException</a>,
                            <a href="../../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></pre>
<div class="block">Returns an estimate for the pth percentile of the stored values.
 <p>
 The implementation provided here follows the first estimation procedure presented
 <a href="http://www.itl.nist.gov/div898/handbook/prc/section2/prc252.htm">here.</a>
 </p><p>
 <strong>Preconditions</strong>:<ul>
 <li><code>0 &lt; p &le; 100</code> (otherwise an
 <code>MathIllegalArgumentException</code> is thrown)</li>
 <li>at least one value must be stored (returns <code>Double.NaN
     </code> otherwise)</li>
 </ul></p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>p</code> - the requested percentile (scaled from 0 - 100)</dd>
<dt><span class="strong">Returns:</span></dt><dd>An estimate for the pth percentile of the stored data</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/commons/math3/exception/MathIllegalStateException.html" title="class in org.apache.commons.math3.exception">MathIllegalStateException</a></code> - if percentile implementation has been
  overridden and the supplied implementation does not support setQuantile</dd>
<dd><code><a href="../../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></code> - if p is not a valid quantile</dd></dl>
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<a name="toString()">
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<h4>toString</h4>
<pre>public&nbsp;<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>&nbsp;toString()</pre>
<div class="block">Generates a text report displaying univariate statistics from values
 that have been added.  Each statistic is displayed on a separate
 line.</div>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code><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></code>&nbsp;in class&nbsp;<code><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></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>String with line feeds displaying statistics</dd></dl>
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<a name="apply(org.apache.commons.math3.stat.descriptive.UnivariateStatistic)">
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<h4>apply</h4>
<pre>public&nbsp;double&nbsp;apply(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;stat)</pre>
<div class="block">Apply the given statistic to the data associated with this set of statistics.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>stat</code> - the statistic to apply</dd>
<dt><span class="strong">Returns:</span></dt><dd>the computed value of the statistic.</dd></dl>
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<h4>getMeanImpl</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;getMeanImpl()</pre>
<div class="block">Returns the currently configured mean implementation.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the UnivariateStatistic implementing the mean</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<h4>setMeanImpl</h4>
<pre>public&nbsp;void&nbsp;setMeanImpl(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;meanImpl)</pre>
<div class="block"><p>Sets the implementation for the mean.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>meanImpl</code> - the UnivariateStatistic instance to use
 for computing the mean</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<h4>getGeometricMeanImpl</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;getGeometricMeanImpl()</pre>
<div class="block">Returns the currently configured geometric mean implementation.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the UnivariateStatistic implementing the geometric mean</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<h4>setGeometricMeanImpl</h4>
<pre>public&nbsp;void&nbsp;setGeometricMeanImpl(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;geometricMeanImpl)</pre>
<div class="block"><p>Sets the implementation for the gemoetric mean.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>geometricMeanImpl</code> - the UnivariateStatistic instance to use
 for computing the geometric mean</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;getKurtosisImpl()</pre>
<div class="block">Returns the currently configured kurtosis implementation.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the UnivariateStatistic implementing the kurtosis</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;void&nbsp;setKurtosisImpl(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;kurtosisImpl)</pre>
<div class="block"><p>Sets the implementation for the kurtosis.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>kurtosisImpl</code> - the UnivariateStatistic instance to use
 for computing the kurtosis</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;getMaxImpl()</pre>
<div class="block">Returns the currently configured maximum implementation.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the UnivariateStatistic implementing the maximum</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;void&nbsp;setMaxImpl(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;maxImpl)</pre>
<div class="block"><p>Sets the implementation for the maximum.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>maxImpl</code> - the UnivariateStatistic instance to use
 for computing the maximum</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;getMinImpl()</pre>
<div class="block">Returns the currently configured minimum implementation.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the UnivariateStatistic implementing the minimum</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;void&nbsp;setMinImpl(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;minImpl)</pre>
<div class="block"><p>Sets the implementation for the minimum.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>minImpl</code> - the UnivariateStatistic instance to use
 for computing the minimum</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;getPercentileImpl()</pre>
<div class="block">Returns the currently configured percentile implementation.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the UnivariateStatistic implementing the percentile</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<h4>setPercentileImpl</h4>
<pre>public&nbsp;void&nbsp;setPercentileImpl(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;percentileImpl)
                       throws <a href="../../../../../../org/apache/commons/math3/exception/MathIllegalArgumentException.html" title="class in org.apache.commons.math3.exception">MathIllegalArgumentException</a></pre>
<div class="block">Sets the implementation to be used by <a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#getPercentile(double)"><code>getPercentile(double)</code></a>.
 The supplied <code>UnivariateStatistic</code> must provide a
 <code>setQuantile(double)</code> method; otherwise
 <code>IllegalArgumentException</code> is thrown.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>percentileImpl</code> - the percentileImpl to set</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 supplied implementation does not
  provide a <code>setQuantile</code> method</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;getSkewnessImpl()</pre>
<div class="block">Returns the currently configured skewness implementation.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the UnivariateStatistic implementing the skewness</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;void&nbsp;setSkewnessImpl(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;skewnessImpl)</pre>
<div class="block"><p>Sets the implementation for the skewness.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>skewnessImpl</code> - the UnivariateStatistic instance to use
 for computing the skewness</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;getVarianceImpl()</pre>
<div class="block">Returns the currently configured variance implementation.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the UnivariateStatistic implementing the variance</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;void&nbsp;setVarianceImpl(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;varianceImpl)</pre>
<div class="block"><p>Sets the implementation for the variance.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>varianceImpl</code> - the UnivariateStatistic instance to use
 for computing the variance</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;getSumsqImpl()</pre>
<div class="block">Returns the currently configured sum of squares implementation.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the UnivariateStatistic implementing the sum of squares</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;void&nbsp;setSumsqImpl(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;sumsqImpl)</pre>
<div class="block"><p>Sets the implementation for the sum of squares.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>sumsqImpl</code> - the UnivariateStatistic instance to use
 for computing the sum of squares</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;getSumImpl()</pre>
<div class="block">Returns the currently configured sum implementation.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the UnivariateStatistic implementing the sum</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<pre>public&nbsp;void&nbsp;setSumImpl(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a>&nbsp;sumImpl)</pre>
<div class="block"><p>Sets the implementation for the sum.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>sumImpl</code> - the UnivariateStatistic instance to use
 for computing the sum</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.2</dd></dl>
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<h4>copy</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">DescriptiveStatistics</a>&nbsp;copy()</pre>
<div class="block">Returns a copy of this DescriptiveStatistics instance with the same internal state.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>a copy of this</dd></dl>
</li>
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<pre>public static&nbsp;void&nbsp;copy(<a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">DescriptiveStatistics</a>&nbsp;source,
        <a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">DescriptiveStatistics</a>&nbsp;dest)
                 throws <a href="../../../../../../org/apache/commons/math3/exception/NullArgumentException.html" title="class in org.apache.commons.math3.exception">NullArgumentException</a></pre>
<div class="block">Copies source to dest.
 <p>Neither source nor dest can be null.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>source</code> - DescriptiveStatistics to copy</dd><dd><code>dest</code> - DescriptiveStatistics to copy to</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 either source or dest is null</dd></dl>
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