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<div class="subTitle">org.apache.openejb.math.stat.descriptive</div>
<h2 title="Class DescriptiveStatistics" class="title">Class DescriptiveStatistics</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>org.apache.openejb.math.stat.descriptive.DescriptiveStatistics</li>
</ul>
</li>
</ul>
<div class="description">
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<dl>
<dt>All Implemented Interfaces:</dt>
<dd>java.io.Serializable, <a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.openejb.math.stat.descriptive">StatisticalSummary</a></dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../../../org/apache/openejb/math/stat/descriptive/SynchronizedDescriptiveStatistics.html" title="class in org.apache.openejb.math.stat.descriptive">SynchronizedDescriptiveStatistics</a></dd>
</dl>
<hr>
<br>
<pre>public class <span class="typeNameLabel">DescriptiveStatistics</span>
extends java.lang.Object
implements <a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.openejb.math.stat.descriptive">StatisticalSummary</a>, java.io.Serializable</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/openejb/math/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,
<code>org.apache.commons.math3.stat.descriptive.SummaryStatistics</code>, 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/openejb/math/stat/descriptive/SynchronizedDescriptiveStatistics.html" title="class in org.apache.openejb.math.stat.descriptive"><code>SynchronizedDescriptiveStatistics</code></a> if concurrent access from multiple
threads is required.</p></div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../serialized-form.html#org.apache.openejb.math.stat.descriptive.DescriptiveStatistics">Serialized Form</a></dd>
</dl>
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</ul>
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<h3>Field Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation">
<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../../../org/apache/openejb/math/util/ResizableDoubleArray.html" title="class in org.apache.openejb.math.util">ResizableDoubleArray</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#eDA">eDA</a></span></code>
<div class="block">Stored data values</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#INFINITE_WINDOW">INFINITE_WINDOW</a></span></code>
<div class="block">Represents an infinite window size.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#windowSize">windowSize</a></span></code>
<div class="block">hold the window size *</div>
</td>
</tr>
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<h3>Constructor Summary</h3>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#DescriptiveStatistics--">DescriptiveStatistics</a></span>()</code>
<div class="block">Construct a DescriptiveStatistics instance with an infinite window</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#DescriptiveStatistics-org.apache.openejb.math.stat.descriptive.DescriptiveStatistics-">DescriptiveStatistics</a></span>(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.openejb.math.stat.descriptive">DescriptiveStatistics</a>&nbsp;original)</code>
<div class="block">Copy constructor.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#DescriptiveStatistics-int-">DescriptiveStatistics</a></span>(int&nbsp;window)</code>
<div class="block">Construct a DescriptiveStatistics instance with the specified window</div>
</td>
</tr>
</table>
</li>
</ul>
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<h3>Method Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#addValue-double-">addValue</a></span>(double&nbsp;v)</code>
<div class="block">Adds the value to the dataset.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#apply-org.apache.openejb.math.stat.descriptive.UnivariateStatistic-">apply</a></span>(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.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 id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#clear--">clear</a></span>()</code>
<div class="block">Resets all statistics and storage</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.openejb.math.stat.descriptive">DescriptiveStatistics</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#copy--">copy</a></span>()</code>
<div class="block">Returns a copy of this DescriptiveStatistics instance with the same internal state.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#copy-org.apache.openejb.math.stat.descriptive.DescriptiveStatistics-org.apache.openejb.math.stat.descriptive.DescriptiveStatistics-">copy</a></span>(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.openejb.math.stat.descriptive">DescriptiveStatistics</a>&nbsp;source,
<a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.openejb.math.stat.descriptive">DescriptiveStatistics</a>&nbsp;dest)</code>
<div class="block">Copies source to dest.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getElement-int-">getElement</a></span>(int&nbsp;index)</code>
<div class="block">Returns the element at the specified index</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getGeometricMean--">getGeometricMean</a></span>()</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 id="i7" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getGeometricMeanImpl--">getGeometricMeanImpl</a></span>()</code>
<div class="block">Returns the currently configured geometric mean implementation.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getKurtosis--">getKurtosis</a></span>()</code>
<div class="block">Returns the Kurtosis of the available values.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getKurtosisImpl--">getKurtosisImpl</a></span>()</code>
<div class="block">Returns the currently configured kurtosis implementation.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getMax--">getMax</a></span>()</code>
<div class="block">Returns the maximum of the available values</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getMaxImpl--">getMaxImpl</a></span>()</code>
<div class="block">Returns the currently configured maximum implementation.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getMean--">getMean</a></span>()</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 id="i13" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getMeanImpl--">getMeanImpl</a></span>()</code>
<div class="block">Returns the currently configured mean implementation.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getMin--">getMin</a></span>()</code>
<div class="block">Returns the minimum of the available values</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getMinImpl--">getMinImpl</a></span>()</code>
<div class="block">Returns the currently configured minimum implementation.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getN--">getN</a></span>()</code>
<div class="block">Returns the number of available values</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getPercentile-double-">getPercentile</a></span>(double&nbsp;p)</code>
<div class="block">Returns an estimate for the pth percentile of the stored values.</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getPercentileImpl--">getPercentileImpl</a></span>()</code>
<div class="block">Returns the currently configured percentile implementation.</div>
</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getSkewness--">getSkewness</a></span>()</code>
<div class="block">Returns the skewness of the available values.</div>
</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getSkewnessImpl--">getSkewnessImpl</a></span>()</code>
<div class="block">Returns the currently configured skewness implementation.</div>
</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>double[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getSortedValues--">getSortedValues</a></span>()</code>
<div class="block">Returns the current set of values in an array of double primitives,
sorted in ascending order.</div>
</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getStandardDeviation--">getStandardDeviation</a></span>()</code>
<div class="block">Returns the standard deviation of the available values.</div>
</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getSum--">getSum</a></span>()</code>
<div class="block">Returns the sum of the values that have been added to Univariate.</div>
</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getSumImpl--">getSumImpl</a></span>()</code>
<div class="block">Returns the currently configured sum implementation.</div>
</td>
</tr>
<tr id="i25" class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getSumsq--">getSumsq</a></span>()</code>
<div class="block">Returns the sum of the squares of the available values.</div>
</td>
</tr>
<tr id="i26" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getSumsqImpl--">getSumsqImpl</a></span>()</code>
<div class="block">Returns the currently configured sum of squares implementation.</div>
</td>
</tr>
<tr id="i27" class="rowColor">
<td class="colFirst"><code>double[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getValues--">getValues</a></span>()</code>
<div class="block">Returns the current set of values in an array of double primitives.</div>
</td>
</tr>
<tr id="i28" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getVariance--">getVariance</a></span>()</code>
<div class="block">Returns the variance of the available values.</div>
</td>
</tr>
<tr id="i29" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getVarianceImpl--">getVarianceImpl</a></span>()</code>
<div class="block">Returns the currently configured variance implementation.</div>
</td>
</tr>
<tr id="i30" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getWindowSize--">getWindowSize</a></span>()</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 id="i31" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#removeMostRecentValue--">removeMostRecentValue</a></span>()</code>
<div class="block">Removes the most recent value from the dataset.</div>
</td>
</tr>
<tr id="i32" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#replaceMostRecentValue-double-">replaceMostRecentValue</a></span>(double&nbsp;v)</code>
<div class="block">Replaces the most recently stored value with the given value.</div>
</td>
</tr>
<tr id="i33" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#setGeometricMeanImpl-org.apache.openejb.math.stat.descriptive.UnivariateStatistic-">setGeometricMeanImpl</a></span>(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;geometricMeanImpl)</code>
<div class="block">Sets the implementation for the gemoetric mean.</div>
</td>
</tr>
<tr id="i34" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#setKurtosisImpl-org.apache.openejb.math.stat.descriptive.UnivariateStatistic-">setKurtosisImpl</a></span>(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;kurtosisImpl)</code>
<div class="block">Sets the implementation for the kurtosis.</div>
</td>
</tr>
<tr id="i35" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#setMaxImpl-org.apache.openejb.math.stat.descriptive.UnivariateStatistic-">setMaxImpl</a></span>(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;maxImpl)</code>
<div class="block">Sets the implementation for the maximum.</div>
</td>
</tr>
<tr id="i36" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#setMeanImpl-org.apache.openejb.math.stat.descriptive.UnivariateStatistic-">setMeanImpl</a></span>(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;meanImpl)</code>
<div class="block">Sets the implementation for the mean.</div>
</td>
</tr>
<tr id="i37" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#setMinImpl-org.apache.openejb.math.stat.descriptive.UnivariateStatistic-">setMinImpl</a></span>(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;minImpl)</code>
<div class="block">Sets the implementation for the minimum.</div>
</td>
</tr>
<tr id="i38" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#setPercentileImpl-org.apache.openejb.math.stat.descriptive.UnivariateStatistic-">setPercentileImpl</a></span>(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;percentileImpl)</code>
<div class="block">Sets the implementation to be used by <a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#getPercentile-double-"><code>getPercentile(double)</code></a>.</div>
</td>
</tr>
<tr id="i39" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#setSkewnessImpl-org.apache.openejb.math.stat.descriptive.UnivariateStatistic-">setSkewnessImpl</a></span>(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;skewnessImpl)</code>
<div class="block">Sets the implementation for the skewness.</div>
</td>
</tr>
<tr id="i40" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#setSumImpl-org.apache.openejb.math.stat.descriptive.UnivariateStatistic-">setSumImpl</a></span>(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;sumImpl)</code>
<div class="block">Sets the implementation for the sum.</div>
</td>
</tr>
<tr id="i41" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#setSumsqImpl-org.apache.openejb.math.stat.descriptive.UnivariateStatistic-">setSumsqImpl</a></span>(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;sumsqImpl)</code>
<div class="block">Sets the implementation for the sum of squares.</div>
</td>
</tr>
<tr id="i42" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#setVarianceImpl-org.apache.openejb.math.stat.descriptive.UnivariateStatistic-">setVarianceImpl</a></span>(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;varianceImpl)</code>
<div class="block">Sets the implementation for the variance.</div>
</td>
</tr>
<tr id="i43" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#setWindowSize-int-">setWindowSize</a></span>(int&nbsp;windowSize)</code>
<div class="block">WindowSize controls the number of values which contribute
to the reported statistics.</div>
</td>
</tr>
<tr id="i44" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html#toString--">toString</a></span>()</code>
<div class="block">Generates a text report displaying univariate statistics from values
that have been added.</div>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li>
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<pre>public static final&nbsp;int INFINITE_WINDOW</pre>
<div class="block">Represents an infinite window size. When the <a href="../../../../../../org/apache/openejb/math/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="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../constant-values.html#org.apache.openejb.math.stat.descriptive.DescriptiveStatistics.INFINITE_WINDOW">Constant Field Values</a></dd>
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<pre>protected&nbsp;int windowSize</pre>
<div class="block">hold the window size *</div>
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<pre>protected&nbsp;<a href="../../../../../../org/apache/openejb/math/util/ResizableDoubleArray.html" title="class in org.apache.openejb.math.util">ResizableDoubleArray</a> eDA</pre>
<div class="block">Stored data values</div>
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<pre>public&nbsp;DescriptiveStatistics()</pre>
<div class="block">Construct a DescriptiveStatistics instance with an infinite window</div>
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<pre>public&nbsp;DescriptiveStatistics(int&nbsp;window)</pre>
<div class="block">Construct a DescriptiveStatistics instance with the specified window</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>window</code> - the window size.</dd>
</dl>
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<pre>public&nbsp;DescriptiveStatistics(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.openejb.math.stat.descriptive">DescriptiveStatistics</a>&nbsp;original)</pre>
<div class="block">Copy constructor. Construct a new DescriptiveStatistics instance that
is a copy of original.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>original</code> - DescriptiveStatistics instance to copy</dd>
</dl>
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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="paramLabel">Parameters:</span></dt>
<dd><code>v</code> - the value to be added</dd>
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<pre>public&nbsp;void&nbsp;removeMostRecentValue()</pre>
<div class="block">Removes the most recent value from the dataset.</div>
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<pre>public&nbsp;double&nbsp;replaceMostRecentValue(double&nbsp;v)</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="paramLabel">Parameters:</span></dt>
<dd><code>v</code> - the value to replace the most recent stored value</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>replaced value</dd>
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<a name="getMean--">
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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><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html#getMean--">getMean</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.openejb.math.stat.descriptive">StatisticalSummary</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The mean or Double.NaN if no values have been added.</dd>
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<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</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The geometricMean, Double.NaN if no values have been added,
or if the product of the available values is less than or equal to 0.</dd>
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<pre>public&nbsp;double&nbsp;getVariance()</pre>
<div class="block">Returns the variance of the available values.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html#getVariance--">getVariance</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.openejb.math.stat.descriptive">StatisticalSummary</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The variance, Double.NaN if no values have been added
or 0.0 for a single value set.</dd>
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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><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html#getStandardDeviation--">getStandardDeviation</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.openejb.math.stat.descriptive">StatisticalSummary</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The standard deviation, Double.NaN if no values have been added
or 0.0 for a single value set.</dd>
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<h4>getSkewness</h4>
<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="returnLabel">Returns:</span></dt>
<dd>The skewness, Double.NaN if no values have been added
or 0.0 for a value set &lt;=2.</dd>
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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="returnLabel">Returns:</span></dt>
<dd>The kurtosis, Double.NaN if no values have been added, or 0.0
for a value set &lt;=3.</dd>
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<pre>public&nbsp;double&nbsp;getMax()</pre>
<div class="block">Returns the maximum of the available values</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html#getMax--">getMax</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.openejb.math.stat.descriptive">StatisticalSummary</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The max or Double.NaN if no values have been added.</dd>
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<pre>public&nbsp;double&nbsp;getMin()</pre>
<div class="block">Returns the minimum of the available values</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html#getMin--">getMin</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.openejb.math.stat.descriptive">StatisticalSummary</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The min or Double.NaN if no values have been added.</dd>
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<pre>public&nbsp;long&nbsp;getN()</pre>
<div class="block">Returns the number of available values</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html#getN--">getN</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.openejb.math.stat.descriptive">StatisticalSummary</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The number of available values</dd>
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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><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html#getSum--">getSum</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/openejb/math/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.openejb.math.stat.descriptive">StatisticalSummary</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The sum or Double.NaN if no values have been added</dd>
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<a name="getSumsq--">
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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="returnLabel">Returns:</span></dt>
<dd>The sum of the squares or Double.NaN if no
values have been added.</dd>
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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="returnLabel">Returns:</span></dt>
<dd>The current window size or -1 if its Infinite.</dd>
</dl>
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<a name="setWindowSize-int-">
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<h4>setWindowSize</h4>
<pre>public&nbsp;void&nbsp;setWindowSize(int&nbsp;windowSize)</pre>
<div class="block">WindowSize controls the number of values which 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</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>windowSize</code> - sets the size of the window.</dd>
</dl>
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<a name="getValues--">
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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="returnLabel">Returns:</span></dt>
<dd>returns the current set of numbers in the order in which they
were added to this set</dd>
</dl>
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<a name="getSortedValues--">
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<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="returnLabel">Returns:</span></dt>
<dd>returns the current set of
numbers sorted in ascending order</dd>
</dl>
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<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="paramLabel">Parameters:</span></dt>
<dd><code>index</code> - The Index of the element</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>return the element at the specified index</dd>
</dl>
</li>
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<pre>public&nbsp;double&nbsp;getPercentile(double&nbsp;p)</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>
<strong>Preconditions</strong>:<ul>
<li><code>0 &lt; p &le; 100</code&gt; (otherwise an
<code>IllegalArgumentException</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="paramLabel">Parameters:</span></dt>
<dd><code>p</code> - the requested percentile (scaled from 0 - 100)</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>An estimate for the pth percentile of the stored data</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.IllegalStateException</code> - if percentile implementation has been
overridden and the supplied implementation does not support setQuantile
values</dd>
</dl>
</li>
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<pre>public&nbsp;java.lang.String&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><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>toString</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>String with line feeds displaying statistics</dd>
</dl>
</li>
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<pre>public&nbsp;double&nbsp;apply(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.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="paramLabel">Parameters:</span></dt>
<dd><code>stat</code> - the statistic to apply</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the computed value of the statistic.</dd>
</dl>
</li>
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<pre>public&nbsp;<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;getMeanImpl()</pre>
<div class="block">Returns the currently configured mean implementation.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the UnivariateStatistic implementing the mean</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
</ul>
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<h4>setMeanImpl</h4>
<pre>public&nbsp;void&nbsp;setMeanImpl(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;meanImpl)</pre>
<div class="block"><p>Sets the implementation for the mean.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>meanImpl</code> - the UnivariateStatistic instance to use
for computing the mean</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
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<pre>public&nbsp;<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;getGeometricMeanImpl()</pre>
<div class="block">Returns the currently configured geometric mean implementation.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the UnivariateStatistic implementing the geometric mean</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
</ul>
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<pre>public&nbsp;void&nbsp;setGeometricMeanImpl(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;geometricMeanImpl)</pre>
<div class="block"><p>Sets the implementation for the gemoetric mean.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>geometricMeanImpl</code> - the UnivariateStatistic instance to use
for computing the geometric mean</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
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<pre>public&nbsp;<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;getKurtosisImpl()</pre>
<div class="block">Returns the currently configured kurtosis implementation.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the UnivariateStatistic implementing the kurtosis</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
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<pre>public&nbsp;void&nbsp;setKurtosisImpl(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;kurtosisImpl)</pre>
<div class="block"><p>Sets the implementation for the kurtosis.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>kurtosisImpl</code> - the UnivariateStatistic instance to use
for computing the kurtosis</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
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<pre>public&nbsp;<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;getMaxImpl()</pre>
<div class="block">Returns the currently configured maximum implementation.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the UnivariateStatistic implementing the maximum</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
</ul>
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<pre>public&nbsp;void&nbsp;setMaxImpl(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;maxImpl)</pre>
<div class="block"><p>Sets the implementation for the maximum.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>maxImpl</code> - the UnivariateStatistic instance to use
for computing the maximum</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
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<pre>public&nbsp;<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;getMinImpl()</pre>
<div class="block">Returns the currently configured minimum implementation.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the UnivariateStatistic implementing the minimum</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
</ul>
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<pre>public&nbsp;void&nbsp;setMinImpl(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;minImpl)</pre>
<div class="block"><p>Sets the implementation for the minimum.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>minImpl</code> - the UnivariateStatistic instance to use
for computing the minimum</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
</ul>
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<pre>public&nbsp;<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;getPercentileImpl()</pre>
<div class="block">Returns the currently configured percentile implementation.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the UnivariateStatistic implementing the percentile</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
</ul>
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<pre>public&nbsp;void&nbsp;setPercentileImpl(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;percentileImpl)</pre>
<div class="block">Sets the implementation to be used by <a href="../../../../../../org/apache/openejb/math/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="paramLabel">Parameters:</span></dt>
<dd><code>percentileImpl</code> - the percentileImpl to set</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if the supplied implementation does not
provide a <code>setQuantile</code> method</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
</ul>
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<pre>public&nbsp;<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;getSkewnessImpl()</pre>
<div class="block">Returns the currently configured skewness implementation.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the UnivariateStatistic implementing the skewness</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
</ul>
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<pre>public&nbsp;void&nbsp;setSkewnessImpl(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;skewnessImpl)</pre>
<div class="block"><p>Sets the implementation for the skewness.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>skewnessImpl</code> - the UnivariateStatistic instance to use
for computing the skewness</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
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<pre>public&nbsp;<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;getVarianceImpl()</pre>
<div class="block">Returns the currently configured variance implementation.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the UnivariateStatistic implementing the variance</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
</ul>
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<pre>public&nbsp;void&nbsp;setVarianceImpl(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;varianceImpl)</pre>
<div class="block"><p>Sets the implementation for the variance.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>varianceImpl</code> - the UnivariateStatistic instance to use
for computing the variance</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
</ul>
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<pre>public&nbsp;<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;getSumsqImpl()</pre>
<div class="block">Returns the currently configured sum of squares implementation.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the UnivariateStatistic implementing the sum of squares</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
</ul>
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<pre>public&nbsp;void&nbsp;setSumsqImpl(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.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="paramLabel">Parameters:</span></dt>
<dd><code>sumsqImpl</code> - the UnivariateStatistic instance to use
for computing the sum of squares</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
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<pre>public&nbsp;<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;getSumImpl()</pre>
<div class="block">Returns the currently configured sum implementation.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the UnivariateStatistic implementing the sum</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
</ul>
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<pre>public&nbsp;void&nbsp;setSumImpl(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.openejb.math.stat.descriptive">UnivariateStatistic</a>&nbsp;sumImpl)</pre>
<div class="block"><p>Sets the implementation for the sum.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>sumImpl</code> - the UnivariateStatistic instance to use
for computing the sum</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
</dl>
</li>
</ul>
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<h4>copy</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.openejb.math.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="returnLabel">Returns:</span></dt>
<dd>a copy of this</dd>
</dl>
</li>
</ul>
<a name="copy-org.apache.openejb.math.stat.descriptive.DescriptiveStatistics-org.apache.openejb.math.stat.descriptive.DescriptiveStatistics-">
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<pre>public static&nbsp;void&nbsp;copy(<a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.openejb.math.stat.descriptive">DescriptiveStatistics</a>&nbsp;source,
<a href="../../../../../../org/apache/openejb/math/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.openejb.math.stat.descriptive">DescriptiveStatistics</a>&nbsp;dest)</pre>
<div class="block">Copies source to dest.
<p>Neither source nor dest can be null.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>source</code> - DescriptiveStatistics to copy</dd>
<dd><code>dest</code> - DescriptiveStatistics to copy to</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.NullPointerException</code> - if either source or dest is null</dd>
</dl>
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</ul>
</li>
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