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<h2 title="Class MeanAndStandardDeviation" class="title">Class MeanAndStandardDeviation</h2>
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<pre>public class <a href="../../../../src-html/org/jfree/data/statistics/MeanAndStandardDeviation.html#line.55">MeanAndStandardDeviation</a>
extends java.lang.Object
implements java.io.Serializable</pre>
<div class="block">A simple data structure that holds a mean value and a standard deviation
 value.  This is used in the
 <a href="../../../../org/jfree/data/statistics/DefaultStatisticalCategoryDataset.html" title="class in org.jfree.data.statistics"><code>DefaultStatisticalCategoryDataset</code></a> class.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/jfree/data/statistics/MeanAndStandardDeviation.html#MeanAndStandardDeviation-double-double-">MeanAndStandardDeviation</a></span>(double&nbsp;mean,
                        double&nbsp;standardDeviation)</code>
<div class="block">Creates a new mean and standard deviation record.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/jfree/data/statistics/MeanAndStandardDeviation.html#MeanAndStandardDeviation-java.lang.Number-java.lang.Number-">MeanAndStandardDeviation</a></span>(java.lang.Number&nbsp;mean,
                        java.lang.Number&nbsp;standardDeviation)</code>
<div class="block">Creates a new mean and standard deviation record.</div>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/jfree/data/statistics/MeanAndStandardDeviation.html#equals-java.lang.Object-">equals</a></span>(java.lang.Object&nbsp;obj)</code>
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<td class="colFirst"><code>java.lang.Number</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/jfree/data/statistics/MeanAndStandardDeviation.html#getMean--">getMean</a></span>()</code>
<div class="block">Returns the mean.</div>
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<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/jfree/data/statistics/MeanAndStandardDeviation.html#getMeanValue--">getMeanValue</a></span>()</code>
<div class="block">Returns the mean as a double primitive.</div>
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<td class="colFirst"><code>java.lang.Number</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/jfree/data/statistics/MeanAndStandardDeviation.html#getStandardDeviation--">getStandardDeviation</a></span>()</code>
<div class="block">Returns the standard deviation.</div>
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<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/jfree/data/statistics/MeanAndStandardDeviation.html#getStandardDeviationValue--">getStandardDeviationValue</a></span>()</code>
<div class="block">Returns the standard deviation as a double primitive.</div>
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<h4>MeanAndStandardDeviation</h4>
<pre>public&nbsp;<a href="../../../../src-html/org/jfree/data/statistics/MeanAndStandardDeviation.html#line.72">MeanAndStandardDeviation</a>(double&nbsp;mean,
                                double&nbsp;standardDeviation)</pre>
<div class="block">Creates a new mean and standard deviation record.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>mean</code> - the mean.</dd>
<dd><code>standardDeviation</code> - the standard deviation.</dd>
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<h4>MeanAndStandardDeviation</h4>
<pre>public&nbsp;<a href="../../../../src-html/org/jfree/data/statistics/MeanAndStandardDeviation.html#line.83">MeanAndStandardDeviation</a>(java.lang.Number&nbsp;mean,
                                java.lang.Number&nbsp;standardDeviation)</pre>
<div class="block">Creates a new mean and standard deviation record.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>mean</code> - the mean (<code>null</code> permitted).</dd>
<dd><code>standardDeviation</code> - the standard deviation (<code>null</code>
                           permitted.</dd>
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<h4>getMean</h4>
<pre>public&nbsp;java.lang.Number&nbsp;<a href="../../../../src-html/org/jfree/data/statistics/MeanAndStandardDeviation.html#line.93">getMean</a>()</pre>
<div class="block">Returns the mean.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The mean.</dd>
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<h4>getMeanValue</h4>
<pre>public&nbsp;double&nbsp;<a href="../../../../src-html/org/jfree/data/statistics/MeanAndStandardDeviation.html#line.107">getMeanValue</a>()</pre>
<div class="block">Returns the mean as a double primitive.  If the underlying mean is
 <code>null</code>, this method will return <code>Double.NaN</code>.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The mean.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.0.7</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../org/jfree/data/statistics/MeanAndStandardDeviation.html#getMean--"><code>getMean()</code></a></dd>
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<h4>getStandardDeviation</h4>
<pre>public&nbsp;java.lang.Number&nbsp;<a href="../../../../src-html/org/jfree/data/statistics/MeanAndStandardDeviation.html#line.120">getStandardDeviation</a>()</pre>
<div class="block">Returns the standard deviation.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The standard deviation.</dd>
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<h4>getStandardDeviationValue</h4>
<pre>public&nbsp;double&nbsp;<a href="../../../../src-html/org/jfree/data/statistics/MeanAndStandardDeviation.html#line.133">getStandardDeviationValue</a>()</pre>
<div class="block">Returns the standard deviation as a double primitive.  If the underlying
 standard deviation is <code>null</code>, this method will return
 <code>Double.NaN</code>.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The standard deviation.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.0.7</dd>
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<pre>public&nbsp;boolean&nbsp;<a href="../../../../src-html/org/jfree/data/statistics/MeanAndStandardDeviation.html#line.149">equals</a>(java.lang.Object&nbsp;obj)</pre>
<div class="block">Tests this instance for equality with an arbitrary object.</div>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>equals</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>obj</code> - the object (<code>null</code> permitted).</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A boolean.</dd>
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<h4>toString</h4>
<pre>public&nbsp;java.lang.String&nbsp;<a href="../../../../src-html/org/jfree/data/statistics/MeanAndStandardDeviation.html#line.176">toString</a>()</pre>
<div class="block">Returns a string representing this instance.</div>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>A string.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.0.7</dd>
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