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From l..@apache.org
Subject svn commit: r948065 [15/16] - in /websites/production/commons/content/proper/commons-math/xref-test: ./ org/apache/commons/math3/ org/apache/commons/math3/analysis/ org/apache/commons/math3/analysis/differentiation/ org/apache/commons/math3/analysis/fu...
Date Fri, 17 Apr 2015 19:49:15 GMT
Modified: websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/SummaryStatisticsTest.html
==============================================================================
--- websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/SummaryStatisticsTest.html (original)
+++ websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/SummaryStatisticsTest.html Fri Apr 17 19:49:06 2015
@@ -36,333 +36,348 @@
 <a class="jxr_linenumber" name="L28" href="#L28">28</a>  <strong class="jxr_keyword">import</strong> org.junit.Test;
 <a class="jxr_linenumber" name="L29" href="#L29">29</a>  <em class="jxr_javadoccomment">/**</em>
 <a class="jxr_linenumber" name="L30" href="#L30">30</a>  <em class="jxr_javadoccomment"> * Test cases for the {@link SummaryStatistics} class.</em>
-<a class="jxr_linenumber" name="L31" href="#L31">31</a>  <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="L32" href="#L32">32</a>  <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="L31" href="#L31">31</a>  <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="L32" href="#L32">32</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/commons/math3/stat/descriptive/SummaryStatisticsTest.html">SummaryStatisticsTest</a> {
 <a class="jxr_linenumber" name="L33" href="#L33">33</a>  
-<a class="jxr_linenumber" name="L34" href="#L34">34</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/commons/math3/stat/descriptive/SummaryStatisticsTest.html">SummaryStatisticsTest</a> {
-<a class="jxr_linenumber" name="L35" href="#L35">35</a>  
-<a class="jxr_linenumber" name="L36" href="#L36">36</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> one = 1;
-<a class="jxr_linenumber" name="L37" href="#L37">37</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">float</strong> twoF = 2;
-<a class="jxr_linenumber" name="L38" href="#L38">38</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">long</strong> twoL = 2;
-<a class="jxr_linenumber" name="L39" href="#L39">39</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> three = 3;
-<a class="jxr_linenumber" name="L40" href="#L40">40</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> mean = 2;
-<a class="jxr_linenumber" name="L41" href="#L41">41</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> sumSq = 18;
-<a class="jxr_linenumber" name="L42" href="#L42">42</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> sum = 8;
-<a class="jxr_linenumber" name="L43" href="#L43">43</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> <strong class="jxr_keyword">var</strong> = 0.666666666666666666667;
-<a class="jxr_linenumber" name="L44" href="#L44">44</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> popVar = 0.5;
-<a class="jxr_linenumber" name="L45" href="#L45">45</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> std = FastMath.sqrt(<strong class="jxr_keyword">var</strong>);
-<a class="jxr_linenumber" name="L46" href="#L46">46</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> n = 4;
-<a class="jxr_linenumber" name="L47" href="#L47">47</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> min = 1;
-<a class="jxr_linenumber" name="L48" href="#L48">48</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> max = 3;
-<a class="jxr_linenumber" name="L49" href="#L49">49</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> tolerance = 10E-15;
-<a class="jxr_linenumber" name="L50" href="#L50">50</a>  
-<a class="jxr_linenumber" name="L51" href="#L51">51</a>      <strong class="jxr_keyword">protected</strong> SummaryStatistics createSummaryStatistics() {
-<a class="jxr_linenumber" name="L52" href="#L52">52</a>          <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> SummaryStatistics();
-<a class="jxr_linenumber" name="L53" href="#L53">53</a>      }
-<a class="jxr_linenumber" name="L54" href="#L54">54</a>  
-<a class="jxr_linenumber" name="L55" href="#L55">55</a>      <em class="jxr_javadoccomment">/** test stats */</em>
-<a class="jxr_linenumber" name="L56" href="#L56">56</a>      @Test
-<a class="jxr_linenumber" name="L57" href="#L57">57</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testStats() {
-<a class="jxr_linenumber" name="L58" href="#L58">58</a>          SummaryStatistics u = createSummaryStatistics();
-<a class="jxr_linenumber" name="L59" href="#L59">59</a>          Assert.assertEquals(<span class="jxr_string">"total count"</span>,0,u.getN(),tolerance);
-<a class="jxr_linenumber" name="L60" href="#L60">60</a>          u.addValue(one);
-<a class="jxr_linenumber" name="L61" href="#L61">61</a>          u.addValue(twoF);
-<a class="jxr_linenumber" name="L62" href="#L62">62</a>          u.addValue(twoL);
-<a class="jxr_linenumber" name="L63" href="#L63">63</a>          u.addValue(three);
-<a class="jxr_linenumber" name="L64" href="#L64">64</a>          Assert.assertEquals(<span class="jxr_string">"N"</span>,n,u.getN(),tolerance);
-<a class="jxr_linenumber" name="L65" href="#L65">65</a>          Assert.assertEquals(<span class="jxr_string">"sum"</span>,sum,u.getSum(),tolerance);
-<a class="jxr_linenumber" name="L66" href="#L66">66</a>          Assert.assertEquals(<span class="jxr_string">"sumsq"</span>,sumSq,u.getSumsq(),tolerance);
-<a class="jxr_linenumber" name="L67" href="#L67">67</a>          Assert.assertEquals(<span class="jxr_string">"var"</span>,<strong class="jxr_keyword">var</strong>,u.getVariance(),tolerance);
-<a class="jxr_linenumber" name="L68" href="#L68">68</a>          Assert.assertEquals(<span class="jxr_string">"population var"</span>,popVar,u.getPopulationVariance(),tolerance);
-<a class="jxr_linenumber" name="L69" href="#L69">69</a>          Assert.assertEquals(<span class="jxr_string">"std"</span>,std,u.getStandardDeviation(),tolerance);
-<a class="jxr_linenumber" name="L70" href="#L70">70</a>          Assert.assertEquals(<span class="jxr_string">"mean"</span>,mean,u.getMean(),tolerance);
-<a class="jxr_linenumber" name="L71" href="#L71">71</a>          Assert.assertEquals(<span class="jxr_string">"min"</span>,min,u.getMin(),tolerance);
-<a class="jxr_linenumber" name="L72" href="#L72">72</a>          Assert.assertEquals(<span class="jxr_string">"max"</span>,max,u.getMax(),tolerance);
-<a class="jxr_linenumber" name="L73" href="#L73">73</a>          u.clear();
-<a class="jxr_linenumber" name="L74" href="#L74">74</a>          Assert.assertEquals(<span class="jxr_string">"total count"</span>,0,u.getN(),tolerance);
-<a class="jxr_linenumber" name="L75" href="#L75">75</a>      }
-<a class="jxr_linenumber" name="L76" href="#L76">76</a>  
-<a class="jxr_linenumber" name="L77" href="#L77">77</a>      @Test
-<a class="jxr_linenumber" name="L78" href="#L78">78</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testN0andN1Conditions() {
-<a class="jxr_linenumber" name="L79" href="#L79">79</a>          SummaryStatistics u = createSummaryStatistics();
-<a class="jxr_linenumber" name="L80" href="#L80">80</a>          Assert.assertTrue(<span class="jxr_string">"Mean of n = 0 set should be NaN"</span>,
-<a class="jxr_linenumber" name="L81" href="#L81">81</a>                  Double.isNaN( u.getMean() ) );
-<a class="jxr_linenumber" name="L82" href="#L82">82</a>          Assert.assertTrue(<span class="jxr_string">"Standard Deviation of n = 0 set should be NaN"</span>,
-<a class="jxr_linenumber" name="L83" href="#L83">83</a>                  Double.isNaN( u.getStandardDeviation() ) );
-<a class="jxr_linenumber" name="L84" href="#L84">84</a>          Assert.assertTrue(<span class="jxr_string">"Variance of n = 0 set should be NaN"</span>,
-<a class="jxr_linenumber" name="L85" href="#L85">85</a>                  Double.isNaN(u.getVariance() ) );
-<a class="jxr_linenumber" name="L86" href="#L86">86</a>  
-<a class="jxr_linenumber" name="L87" href="#L87">87</a>          <em class="jxr_comment">/* n=1 */</em>
-<a class="jxr_linenumber" name="L88" href="#L88">88</a>          u.addValue(one);
-<a class="jxr_linenumber" name="L89" href="#L89">89</a>          Assert.assertTrue(<span class="jxr_string">"mean should be one (n = 1)"</span>,
-<a class="jxr_linenumber" name="L90" href="#L90">90</a>                  u.getMean() == one);
-<a class="jxr_linenumber" name="L91" href="#L91">91</a>          Assert.assertTrue(<span class="jxr_string">"geometric should be one (n = 1) instead it is "</span> + u.getGeometricMean(),
-<a class="jxr_linenumber" name="L92" href="#L92">92</a>                  u.getGeometricMean() == one);
-<a class="jxr_linenumber" name="L93" href="#L93">93</a>          Assert.assertTrue(<span class="jxr_string">"Std should be zero (n = 1)"</span>,
-<a class="jxr_linenumber" name="L94" href="#L94">94</a>                  u.getStandardDeviation() == 0.0);
-<a class="jxr_linenumber" name="L95" href="#L95">95</a>          Assert.assertTrue(<span class="jxr_string">"variance should be zero (n = 1)"</span>,
-<a class="jxr_linenumber" name="L96" href="#L96">96</a>                  u.getVariance() == 0.0);
-<a class="jxr_linenumber" name="L97" href="#L97">97</a>  
-<a class="jxr_linenumber" name="L98" href="#L98">98</a>          <em class="jxr_comment">/* n=2 */</em>
-<a class="jxr_linenumber" name="L99" href="#L99">99</a>          u.addValue(twoF);
-<a class="jxr_linenumber" name="L100" href="#L100">100</a>         Assert.assertTrue(<span class="jxr_string">"Std should not be zero (n = 2)"</span>,
-<a class="jxr_linenumber" name="L101" href="#L101">101</a>                 u.getStandardDeviation() != 0.0);
-<a class="jxr_linenumber" name="L102" href="#L102">102</a>         Assert.assertTrue(<span class="jxr_string">"variance should not be zero (n = 2)"</span>,
-<a class="jxr_linenumber" name="L103" href="#L103">103</a>                 u.getVariance() != 0.0);
+<a class="jxr_linenumber" name="L34" href="#L34">34</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> one = 1;
+<a class="jxr_linenumber" name="L35" href="#L35">35</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">float</strong> twoF = 2;
+<a class="jxr_linenumber" name="L36" href="#L36">36</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">long</strong> twoL = 2;
+<a class="jxr_linenumber" name="L37" href="#L37">37</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> three = 3;
+<a class="jxr_linenumber" name="L38" href="#L38">38</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> mean = 2;
+<a class="jxr_linenumber" name="L39" href="#L39">39</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> sumSq = 18;
+<a class="jxr_linenumber" name="L40" href="#L40">40</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> sum = 8;
+<a class="jxr_linenumber" name="L41" href="#L41">41</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> <strong class="jxr_keyword">var</strong> = 0.666666666666666666667;
+<a class="jxr_linenumber" name="L42" href="#L42">42</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> popVar = 0.5;
+<a class="jxr_linenumber" name="L43" href="#L43">43</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> std = FastMath.sqrt(<strong class="jxr_keyword">var</strong>);
+<a class="jxr_linenumber" name="L44" href="#L44">44</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> n = 4;
+<a class="jxr_linenumber" name="L45" href="#L45">45</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> min = 1;
+<a class="jxr_linenumber" name="L46" href="#L46">46</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> max = 3;
+<a class="jxr_linenumber" name="L47" href="#L47">47</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">double</strong> tolerance = 10E-15;
+<a class="jxr_linenumber" name="L48" href="#L48">48</a>  
+<a class="jxr_linenumber" name="L49" href="#L49">49</a>      <strong class="jxr_keyword">protected</strong> SummaryStatistics createSummaryStatistics() {
+<a class="jxr_linenumber" name="L50" href="#L50">50</a>          <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> SummaryStatistics();
+<a class="jxr_linenumber" name="L51" href="#L51">51</a>      }
+<a class="jxr_linenumber" name="L52" href="#L52">52</a>  
+<a class="jxr_linenumber" name="L53" href="#L53">53</a>      <em class="jxr_javadoccomment">/** test stats */</em>
+<a class="jxr_linenumber" name="L54" href="#L54">54</a>      @Test
+<a class="jxr_linenumber" name="L55" href="#L55">55</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testStats() {
+<a class="jxr_linenumber" name="L56" href="#L56">56</a>          SummaryStatistics u = createSummaryStatistics();
+<a class="jxr_linenumber" name="L57" href="#L57">57</a>          Assert.assertEquals(<span class="jxr_string">"total count"</span>,0,u.getN(),tolerance);
+<a class="jxr_linenumber" name="L58" href="#L58">58</a>          u.addValue(one);
+<a class="jxr_linenumber" name="L59" href="#L59">59</a>          u.addValue(twoF);
+<a class="jxr_linenumber" name="L60" href="#L60">60</a>          u.addValue(twoL);
+<a class="jxr_linenumber" name="L61" href="#L61">61</a>          u.addValue(three);
+<a class="jxr_linenumber" name="L62" href="#L62">62</a>          Assert.assertEquals(<span class="jxr_string">"N"</span>,n,u.getN(),tolerance);
+<a class="jxr_linenumber" name="L63" href="#L63">63</a>          Assert.assertEquals(<span class="jxr_string">"sum"</span>,sum,u.getSum(),tolerance);
+<a class="jxr_linenumber" name="L64" href="#L64">64</a>          Assert.assertEquals(<span class="jxr_string">"sumsq"</span>,sumSq,u.getSumsq(),tolerance);
+<a class="jxr_linenumber" name="L65" href="#L65">65</a>          Assert.assertEquals(<span class="jxr_string">"var"</span>,<strong class="jxr_keyword">var</strong>,u.getVariance(),tolerance);
+<a class="jxr_linenumber" name="L66" href="#L66">66</a>          Assert.assertEquals(<span class="jxr_string">"population var"</span>,popVar,u.getPopulationVariance(),tolerance);
+<a class="jxr_linenumber" name="L67" href="#L67">67</a>          Assert.assertEquals(<span class="jxr_string">"std"</span>,std,u.getStandardDeviation(),tolerance);
+<a class="jxr_linenumber" name="L68" href="#L68">68</a>          Assert.assertEquals(<span class="jxr_string">"mean"</span>,mean,u.getMean(),tolerance);
+<a class="jxr_linenumber" name="L69" href="#L69">69</a>          Assert.assertEquals(<span class="jxr_string">"min"</span>,min,u.getMin(),tolerance);
+<a class="jxr_linenumber" name="L70" href="#L70">70</a>          Assert.assertEquals(<span class="jxr_string">"max"</span>,max,u.getMax(),tolerance);
+<a class="jxr_linenumber" name="L71" href="#L71">71</a>          u.clear();
+<a class="jxr_linenumber" name="L72" href="#L72">72</a>          Assert.assertEquals(<span class="jxr_string">"total count"</span>,0,u.getN(),tolerance);
+<a class="jxr_linenumber" name="L73" href="#L73">73</a>      }
+<a class="jxr_linenumber" name="L74" href="#L74">74</a>  
+<a class="jxr_linenumber" name="L75" href="#L75">75</a>      @Test
+<a class="jxr_linenumber" name="L76" href="#L76">76</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testN0andN1Conditions() {
+<a class="jxr_linenumber" name="L77" href="#L77">77</a>          SummaryStatistics u = createSummaryStatistics();
+<a class="jxr_linenumber" name="L78" href="#L78">78</a>          Assert.assertTrue(<span class="jxr_string">"Mean of n = 0 set should be NaN"</span>,
+<a class="jxr_linenumber" name="L79" href="#L79">79</a>                  Double.isNaN( u.getMean() ) );
+<a class="jxr_linenumber" name="L80" href="#L80">80</a>          Assert.assertTrue(<span class="jxr_string">"Standard Deviation of n = 0 set should be NaN"</span>,
+<a class="jxr_linenumber" name="L81" href="#L81">81</a>                  Double.isNaN( u.getStandardDeviation() ) );
+<a class="jxr_linenumber" name="L82" href="#L82">82</a>          Assert.assertTrue(<span class="jxr_string">"Variance of n = 0 set should be NaN"</span>,
+<a class="jxr_linenumber" name="L83" href="#L83">83</a>                  Double.isNaN(u.getVariance() ) );
+<a class="jxr_linenumber" name="L84" href="#L84">84</a>  
+<a class="jxr_linenumber" name="L85" href="#L85">85</a>          <em class="jxr_comment">/* n=1 */</em>
+<a class="jxr_linenumber" name="L86" href="#L86">86</a>          u.addValue(one);
+<a class="jxr_linenumber" name="L87" href="#L87">87</a>          Assert.assertTrue(<span class="jxr_string">"mean should be one (n = 1)"</span>,
+<a class="jxr_linenumber" name="L88" href="#L88">88</a>                  u.getMean() == one);
+<a class="jxr_linenumber" name="L89" href="#L89">89</a>          Assert.assertTrue(<span class="jxr_string">"geometric should be one (n = 1) instead it is "</span> + u.getGeometricMean(),
+<a class="jxr_linenumber" name="L90" href="#L90">90</a>                  u.getGeometricMean() == one);
+<a class="jxr_linenumber" name="L91" href="#L91">91</a>          Assert.assertTrue(<span class="jxr_string">"Std should be zero (n = 1)"</span>,
+<a class="jxr_linenumber" name="L92" href="#L92">92</a>                  u.getStandardDeviation() == 0.0);
+<a class="jxr_linenumber" name="L93" href="#L93">93</a>          Assert.assertTrue(<span class="jxr_string">"variance should be zero (n = 1)"</span>,
+<a class="jxr_linenumber" name="L94" href="#L94">94</a>                  u.getVariance() == 0.0);
+<a class="jxr_linenumber" name="L95" href="#L95">95</a>  
+<a class="jxr_linenumber" name="L96" href="#L96">96</a>          <em class="jxr_comment">/* n=2 */</em>
+<a class="jxr_linenumber" name="L97" href="#L97">97</a>          u.addValue(twoF);
+<a class="jxr_linenumber" name="L98" href="#L98">98</a>          Assert.assertTrue(<span class="jxr_string">"Std should not be zero (n = 2)"</span>,
+<a class="jxr_linenumber" name="L99" href="#L99">99</a>                  u.getStandardDeviation() != 0.0);
+<a class="jxr_linenumber" name="L100" href="#L100">100</a>         Assert.assertTrue(<span class="jxr_string">"variance should not be zero (n = 2)"</span>,
+<a class="jxr_linenumber" name="L101" href="#L101">101</a>                 u.getVariance() != 0.0);
+<a class="jxr_linenumber" name="L102" href="#L102">102</a> 
+<a class="jxr_linenumber" name="L103" href="#L103">103</a>     }
 <a class="jxr_linenumber" name="L104" href="#L104">104</a> 
-<a class="jxr_linenumber" name="L105" href="#L105">105</a>     }
-<a class="jxr_linenumber" name="L106" href="#L106">106</a> 
-<a class="jxr_linenumber" name="L107" href="#L107">107</a>     @Test
-<a class="jxr_linenumber" name="L108" href="#L108">108</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testProductAndGeometricMean() {
-<a class="jxr_linenumber" name="L109" href="#L109">109</a>         SummaryStatistics u = createSummaryStatistics();
-<a class="jxr_linenumber" name="L110" href="#L110">110</a>         u.addValue( 1.0 );
-<a class="jxr_linenumber" name="L111" href="#L111">111</a>         u.addValue( 2.0 );
-<a class="jxr_linenumber" name="L112" href="#L112">112</a>         u.addValue( 3.0 );
-<a class="jxr_linenumber" name="L113" href="#L113">113</a>         u.addValue( 4.0 );
-<a class="jxr_linenumber" name="L114" href="#L114">114</a> 
-<a class="jxr_linenumber" name="L115" href="#L115">115</a>         Assert.assertEquals( <span class="jxr_string">"Geometric mean not expected"</span>, 2.213364,
-<a class="jxr_linenumber" name="L116" href="#L116">116</a>                 u.getGeometricMean(), 0.00001 );
-<a class="jxr_linenumber" name="L117" href="#L117">117</a>     }
-<a class="jxr_linenumber" name="L118" href="#L118">118</a> 
-<a class="jxr_linenumber" name="L119" href="#L119">119</a>     @Test
-<a class="jxr_linenumber" name="L120" href="#L120">120</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNaNContracts() {
-<a class="jxr_linenumber" name="L121" href="#L121">121</a>         SummaryStatistics u = createSummaryStatistics();
-<a class="jxr_linenumber" name="L122" href="#L122">122</a>         Assert.assertTrue(<span class="jxr_string">"mean not NaN"</span>,Double.isNaN(u.getMean()));
-<a class="jxr_linenumber" name="L123" href="#L123">123</a>         Assert.assertTrue(<span class="jxr_string">"min not NaN"</span>,Double.isNaN(u.getMin()));
-<a class="jxr_linenumber" name="L124" href="#L124">124</a>         Assert.assertTrue(<span class="jxr_string">"std dev not NaN"</span>,Double.isNaN(u.getStandardDeviation()));
-<a class="jxr_linenumber" name="L125" href="#L125">125</a>         Assert.assertTrue(<span class="jxr_string">"var not NaN"</span>,Double.isNaN(u.getVariance()));
-<a class="jxr_linenumber" name="L126" href="#L126">126</a>         Assert.assertTrue(<span class="jxr_string">"geom mean not NaN"</span>,Double.isNaN(u.getGeometricMean()));
+<a class="jxr_linenumber" name="L105" href="#L105">105</a>     @Test
+<a class="jxr_linenumber" name="L106" href="#L106">106</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testProductAndGeometricMean() {
+<a class="jxr_linenumber" name="L107" href="#L107">107</a>         SummaryStatistics u = createSummaryStatistics();
+<a class="jxr_linenumber" name="L108" href="#L108">108</a>         u.addValue( 1.0 );
+<a class="jxr_linenumber" name="L109" href="#L109">109</a>         u.addValue( 2.0 );
+<a class="jxr_linenumber" name="L110" href="#L110">110</a>         u.addValue( 3.0 );
+<a class="jxr_linenumber" name="L111" href="#L111">111</a>         u.addValue( 4.0 );
+<a class="jxr_linenumber" name="L112" href="#L112">112</a> 
+<a class="jxr_linenumber" name="L113" href="#L113">113</a>         Assert.assertEquals( <span class="jxr_string">"Geometric mean not expected"</span>, 2.213364,
+<a class="jxr_linenumber" name="L114" href="#L114">114</a>                 u.getGeometricMean(), 0.00001 );
+<a class="jxr_linenumber" name="L115" href="#L115">115</a>     }
+<a class="jxr_linenumber" name="L116" href="#L116">116</a> 
+<a class="jxr_linenumber" name="L117" href="#L117">117</a>     @Test
+<a class="jxr_linenumber" name="L118" href="#L118">118</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testNaNContracts() {
+<a class="jxr_linenumber" name="L119" href="#L119">119</a>         SummaryStatistics u = createSummaryStatistics();
+<a class="jxr_linenumber" name="L120" href="#L120">120</a>         Assert.assertTrue(<span class="jxr_string">"mean not NaN"</span>,Double.isNaN(u.getMean()));
+<a class="jxr_linenumber" name="L121" href="#L121">121</a>         Assert.assertTrue(<span class="jxr_string">"min not NaN"</span>,Double.isNaN(u.getMin()));
+<a class="jxr_linenumber" name="L122" href="#L122">122</a>         Assert.assertTrue(<span class="jxr_string">"std dev not NaN"</span>,Double.isNaN(u.getStandardDeviation()));
+<a class="jxr_linenumber" name="L123" href="#L123">123</a>         Assert.assertTrue(<span class="jxr_string">"var not NaN"</span>,Double.isNaN(u.getVariance()));
+<a class="jxr_linenumber" name="L124" href="#L124">124</a>         Assert.assertTrue(<span class="jxr_string">"geom mean not NaN"</span>,Double.isNaN(u.getGeometricMean()));
+<a class="jxr_linenumber" name="L125" href="#L125">125</a> 
+<a class="jxr_linenumber" name="L126" href="#L126">126</a>         u.addValue(1.0);
 <a class="jxr_linenumber" name="L127" href="#L127">127</a> 
-<a class="jxr_linenumber" name="L128" href="#L128">128</a>         u.addValue(1.0);
-<a class="jxr_linenumber" name="L129" href="#L129">129</a> 
-<a class="jxr_linenumber" name="L130" href="#L130">130</a>         Assert.assertEquals( <span class="jxr_string">"mean not expected"</span>, 1.0,
-<a class="jxr_linenumber" name="L131" href="#L131">131</a>                 u.getMean(), Double.MIN_VALUE);
-<a class="jxr_linenumber" name="L132" href="#L132">132</a>         Assert.assertEquals( <span class="jxr_string">"variance not expected"</span>, 0.0,
-<a class="jxr_linenumber" name="L133" href="#L133">133</a>                 u.getVariance(), Double.MIN_VALUE);
-<a class="jxr_linenumber" name="L134" href="#L134">134</a>         Assert.assertEquals( <span class="jxr_string">"geometric mean not expected"</span>, 1.0,
-<a class="jxr_linenumber" name="L135" href="#L135">135</a>                 u.getGeometricMean(), Double.MIN_VALUE);
+<a class="jxr_linenumber" name="L128" href="#L128">128</a>         Assert.assertEquals( <span class="jxr_string">"mean not expected"</span>, 1.0,
+<a class="jxr_linenumber" name="L129" href="#L129">129</a>                 u.getMean(), Double.MIN_VALUE);
+<a class="jxr_linenumber" name="L130" href="#L130">130</a>         Assert.assertEquals( <span class="jxr_string">"variance not expected"</span>, 0.0,
+<a class="jxr_linenumber" name="L131" href="#L131">131</a>                 u.getVariance(), Double.MIN_VALUE);
+<a class="jxr_linenumber" name="L132" href="#L132">132</a>         Assert.assertEquals( <span class="jxr_string">"geometric mean not expected"</span>, 1.0,
+<a class="jxr_linenumber" name="L133" href="#L133">133</a>                 u.getGeometricMean(), Double.MIN_VALUE);
+<a class="jxr_linenumber" name="L134" href="#L134">134</a> 
+<a class="jxr_linenumber" name="L135" href="#L135">135</a>         u.addValue(-1.0);
 <a class="jxr_linenumber" name="L136" href="#L136">136</a> 
-<a class="jxr_linenumber" name="L137" href="#L137">137</a>         u.addValue(-1.0);
+<a class="jxr_linenumber" name="L137" href="#L137">137</a>         Assert.assertTrue(<span class="jxr_string">"geom mean not NaN"</span>,Double.isNaN(u.getGeometricMean()));
 <a class="jxr_linenumber" name="L138" href="#L138">138</a> 
-<a class="jxr_linenumber" name="L139" href="#L139">139</a>         Assert.assertTrue(<span class="jxr_string">"geom mean not NaN"</span>,Double.isNaN(u.getGeometricMean()));
+<a class="jxr_linenumber" name="L139" href="#L139">139</a>         u.addValue(0.0);
 <a class="jxr_linenumber" name="L140" href="#L140">140</a> 
-<a class="jxr_linenumber" name="L141" href="#L141">141</a>         u.addValue(0.0);
+<a class="jxr_linenumber" name="L141" href="#L141">141</a>         Assert.assertTrue(<span class="jxr_string">"geom mean not NaN"</span>,Double.isNaN(u.getGeometricMean()));
 <a class="jxr_linenumber" name="L142" href="#L142">142</a> 
-<a class="jxr_linenumber" name="L143" href="#L143">143</a>         Assert.assertTrue(<span class="jxr_string">"geom mean not NaN"</span>,Double.isNaN(u.getGeometricMean()));
-<a class="jxr_linenumber" name="L144" href="#L144">144</a> 
-<a class="jxr_linenumber" name="L145" href="#L145">145</a>         <em class="jxr_comment">//FiXME: test all other NaN contract specs</em>
-<a class="jxr_linenumber" name="L146" href="#L146">146</a>     }
-<a class="jxr_linenumber" name="L147" href="#L147">147</a> 
-<a class="jxr_linenumber" name="L148" href="#L148">148</a>     @Test
-<a class="jxr_linenumber" name="L149" href="#L149">149</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testGetSummary() {
-<a class="jxr_linenumber" name="L150" href="#L150">150</a>         SummaryStatistics u = createSummaryStatistics();
-<a class="jxr_linenumber" name="L151" href="#L151">151</a>         StatisticalSummary summary = u.getSummary();
-<a class="jxr_linenumber" name="L152" href="#L152">152</a>         verifySummary(u, summary);
-<a class="jxr_linenumber" name="L153" href="#L153">153</a>         u.addValue(1d);
-<a class="jxr_linenumber" name="L154" href="#L154">154</a>         summary = u.getSummary();
-<a class="jxr_linenumber" name="L155" href="#L155">155</a>         verifySummary(u, summary);
-<a class="jxr_linenumber" name="L156" href="#L156">156</a>         u.addValue(2d);
-<a class="jxr_linenumber" name="L157" href="#L157">157</a>         summary = u.getSummary();
-<a class="jxr_linenumber" name="L158" href="#L158">158</a>         verifySummary(u, summary);
-<a class="jxr_linenumber" name="L159" href="#L159">159</a>         u.addValue(2d);
-<a class="jxr_linenumber" name="L160" href="#L160">160</a>         summary = u.getSummary();
-<a class="jxr_linenumber" name="L161" href="#L161">161</a>         verifySummary(u, summary);
-<a class="jxr_linenumber" name="L162" href="#L162">162</a>     }
-<a class="jxr_linenumber" name="L163" href="#L163">163</a> 
-<a class="jxr_linenumber" name="L164" href="#L164">164</a>     @Test
-<a class="jxr_linenumber" name="L165" href="#L165">165</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testSerialization() {
-<a class="jxr_linenumber" name="L166" href="#L166">166</a>         SummaryStatistics u = createSummaryStatistics();
-<a class="jxr_linenumber" name="L167" href="#L167">167</a>         <em class="jxr_comment">// Empty test</em>
-<a class="jxr_linenumber" name="L168" href="#L168">168</a>         TestUtils.checkSerializedEquality(u);
-<a class="jxr_linenumber" name="L169" href="#L169">169</a>         SummaryStatistics s = (SummaryStatistics) TestUtils.serializeAndRecover(u);
-<a class="jxr_linenumber" name="L170" href="#L170">170</a>         StatisticalSummary summary = s.getSummary();
-<a class="jxr_linenumber" name="L171" href="#L171">171</a>         verifySummary(u, summary);
-<a class="jxr_linenumber" name="L172" href="#L172">172</a> 
-<a class="jxr_linenumber" name="L173" href="#L173">173</a>         <em class="jxr_comment">// Add some data</em>
-<a class="jxr_linenumber" name="L174" href="#L174">174</a>         u.addValue(2d);
-<a class="jxr_linenumber" name="L175" href="#L175">175</a>         u.addValue(1d);
-<a class="jxr_linenumber" name="L176" href="#L176">176</a>         u.addValue(3d);
-<a class="jxr_linenumber" name="L177" href="#L177">177</a>         u.addValue(4d);
-<a class="jxr_linenumber" name="L178" href="#L178">178</a>         u.addValue(5d);
-<a class="jxr_linenumber" name="L179" href="#L179">179</a> 
-<a class="jxr_linenumber" name="L180" href="#L180">180</a>         <em class="jxr_comment">// Test again</em>
-<a class="jxr_linenumber" name="L181" href="#L181">181</a>         TestUtils.checkSerializedEquality(u);
-<a class="jxr_linenumber" name="L182" href="#L182">182</a>         s = (SummaryStatistics) TestUtils.serializeAndRecover(u);
-<a class="jxr_linenumber" name="L183" href="#L183">183</a>         summary = s.getSummary();
-<a class="jxr_linenumber" name="L184" href="#L184">184</a>         verifySummary(u, summary);
+<a class="jxr_linenumber" name="L143" href="#L143">143</a>         <em class="jxr_comment">//FiXME: test all other NaN contract specs</em>
+<a class="jxr_linenumber" name="L144" href="#L144">144</a>     }
+<a class="jxr_linenumber" name="L145" href="#L145">145</a> 
+<a class="jxr_linenumber" name="L146" href="#L146">146</a>     @Test
+<a class="jxr_linenumber" name="L147" href="#L147">147</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testGetSummary() {
+<a class="jxr_linenumber" name="L148" href="#L148">148</a>         SummaryStatistics u = createSummaryStatistics();
+<a class="jxr_linenumber" name="L149" href="#L149">149</a>         StatisticalSummary summary = u.getSummary();
+<a class="jxr_linenumber" name="L150" href="#L150">150</a>         verifySummary(u, summary);
+<a class="jxr_linenumber" name="L151" href="#L151">151</a>         u.addValue(1d);
+<a class="jxr_linenumber" name="L152" href="#L152">152</a>         summary = u.getSummary();
+<a class="jxr_linenumber" name="L153" href="#L153">153</a>         verifySummary(u, summary);
+<a class="jxr_linenumber" name="L154" href="#L154">154</a>         u.addValue(2d);
+<a class="jxr_linenumber" name="L155" href="#L155">155</a>         summary = u.getSummary();
+<a class="jxr_linenumber" name="L156" href="#L156">156</a>         verifySummary(u, summary);
+<a class="jxr_linenumber" name="L157" href="#L157">157</a>         u.addValue(2d);
+<a class="jxr_linenumber" name="L158" href="#L158">158</a>         summary = u.getSummary();
+<a class="jxr_linenumber" name="L159" href="#L159">159</a>         verifySummary(u, summary);
+<a class="jxr_linenumber" name="L160" href="#L160">160</a>     }
+<a class="jxr_linenumber" name="L161" href="#L161">161</a> 
+<a class="jxr_linenumber" name="L162" href="#L162">162</a>     @Test
+<a class="jxr_linenumber" name="L163" href="#L163">163</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testSerialization() {
+<a class="jxr_linenumber" name="L164" href="#L164">164</a>         SummaryStatistics u = createSummaryStatistics();
+<a class="jxr_linenumber" name="L165" href="#L165">165</a>         <em class="jxr_comment">// Empty test</em>
+<a class="jxr_linenumber" name="L166" href="#L166">166</a>         TestUtils.checkSerializedEquality(u);
+<a class="jxr_linenumber" name="L167" href="#L167">167</a>         SummaryStatistics s = (SummaryStatistics) TestUtils.serializeAndRecover(u);
+<a class="jxr_linenumber" name="L168" href="#L168">168</a>         StatisticalSummary summary = s.getSummary();
+<a class="jxr_linenumber" name="L169" href="#L169">169</a>         verifySummary(u, summary);
+<a class="jxr_linenumber" name="L170" href="#L170">170</a> 
+<a class="jxr_linenumber" name="L171" href="#L171">171</a>         <em class="jxr_comment">// Add some data</em>
+<a class="jxr_linenumber" name="L172" href="#L172">172</a>         u.addValue(2d);
+<a class="jxr_linenumber" name="L173" href="#L173">173</a>         u.addValue(1d);
+<a class="jxr_linenumber" name="L174" href="#L174">174</a>         u.addValue(3d);
+<a class="jxr_linenumber" name="L175" href="#L175">175</a>         u.addValue(4d);
+<a class="jxr_linenumber" name="L176" href="#L176">176</a>         u.addValue(5d);
+<a class="jxr_linenumber" name="L177" href="#L177">177</a> 
+<a class="jxr_linenumber" name="L178" href="#L178">178</a>         <em class="jxr_comment">// Test again</em>
+<a class="jxr_linenumber" name="L179" href="#L179">179</a>         TestUtils.checkSerializedEquality(u);
+<a class="jxr_linenumber" name="L180" href="#L180">180</a>         s = (SummaryStatistics) TestUtils.serializeAndRecover(u);
+<a class="jxr_linenumber" name="L181" href="#L181">181</a>         summary = s.getSummary();
+<a class="jxr_linenumber" name="L182" href="#L182">182</a>         verifySummary(u, summary);
+<a class="jxr_linenumber" name="L183" href="#L183">183</a> 
+<a class="jxr_linenumber" name="L184" href="#L184">184</a>     }
 <a class="jxr_linenumber" name="L185" href="#L185">185</a> 
-<a class="jxr_linenumber" name="L186" href="#L186">186</a>     }
-<a class="jxr_linenumber" name="L187" href="#L187">187</a> 
-<a class="jxr_linenumber" name="L188" href="#L188">188</a>     @Test
-<a class="jxr_linenumber" name="L189" href="#L189">189</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testEqualsAndHashCode() {
-<a class="jxr_linenumber" name="L190" href="#L190">190</a>         SummaryStatistics u = createSummaryStatistics();
-<a class="jxr_linenumber" name="L191" href="#L191">191</a>         SummaryStatistics t = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="L192" href="#L192">192</a>         <strong class="jxr_keyword">int</strong> emptyHash = u.hashCode();
-<a class="jxr_linenumber" name="L193" href="#L193">193</a>         Assert.assertTrue(<span class="jxr_string">"reflexive"</span>, u.equals(u));
-<a class="jxr_linenumber" name="L194" href="#L194">194</a>         Assert.assertFalse(<span class="jxr_string">"non-null compared to null"</span>, u.equals(t));
-<a class="jxr_linenumber" name="L195" href="#L195">195</a>         Assert.assertFalse(<span class="jxr_string">"wrong type"</span>, u.equals(Double.valueOf(0)));
-<a class="jxr_linenumber" name="L196" href="#L196">196</a>         t = createSummaryStatistics();
-<a class="jxr_linenumber" name="L197" href="#L197">197</a>         Assert.assertTrue(<span class="jxr_string">"empty instances should be equal"</span>, t.equals(u));
-<a class="jxr_linenumber" name="L198" href="#L198">198</a>         Assert.assertTrue(<span class="jxr_string">"empty instances should be equal"</span>, u.equals(t));
-<a class="jxr_linenumber" name="L199" href="#L199">199</a>         Assert.assertEquals(<span class="jxr_string">"empty hash code"</span>, emptyHash, t.hashCode());
-<a class="jxr_linenumber" name="L200" href="#L200">200</a> 
-<a class="jxr_linenumber" name="L201" href="#L201">201</a>         <em class="jxr_comment">// Add some data to u</em>
-<a class="jxr_linenumber" name="L202" href="#L202">202</a>         u.addValue(2d);
-<a class="jxr_linenumber" name="L203" href="#L203">203</a>         u.addValue(1d);
-<a class="jxr_linenumber" name="L204" href="#L204">204</a>         u.addValue(3d);
-<a class="jxr_linenumber" name="L205" href="#L205">205</a>         u.addValue(4d);
-<a class="jxr_linenumber" name="L206" href="#L206">206</a>         Assert.assertFalse(<span class="jxr_string">"different n's should make instances not equal"</span>, t.equals(u));
-<a class="jxr_linenumber" name="L207" href="#L207">207</a>         Assert.assertFalse(<span class="jxr_string">"different n's should make instances not equal"</span>, u.equals(t));
-<a class="jxr_linenumber" name="L208" href="#L208">208</a>         Assert.assertTrue(<span class="jxr_string">"different n's should make hashcodes different"</span>,
-<a class="jxr_linenumber" name="L209" href="#L209">209</a>                 u.hashCode() != t.hashCode());
-<a class="jxr_linenumber" name="L210" href="#L210">210</a> 
-<a class="jxr_linenumber" name="L211" href="#L211">211</a>         <em class="jxr_comment">//Add data in same order to t</em>
-<a class="jxr_linenumber" name="L212" href="#L212">212</a>         t.addValue(2d);
-<a class="jxr_linenumber" name="L213" href="#L213">213</a>         t.addValue(1d);
-<a class="jxr_linenumber" name="L214" href="#L214">214</a>         t.addValue(3d);
-<a class="jxr_linenumber" name="L215" href="#L215">215</a>         t.addValue(4d);
-<a class="jxr_linenumber" name="L216" href="#L216">216</a>         Assert.assertTrue(<span class="jxr_string">"summaries based on same data should be equal"</span>, t.equals(u));
-<a class="jxr_linenumber" name="L217" href="#L217">217</a>         Assert.assertTrue(<span class="jxr_string">"summaries based on same data should be equal"</span>, u.equals(t));
-<a class="jxr_linenumber" name="L218" href="#L218">218</a>         Assert.assertEquals(<span class="jxr_string">"summaries based on same data should have same hashcodes"</span>,
-<a class="jxr_linenumber" name="L219" href="#L219">219</a>                 u.hashCode(), t.hashCode());
-<a class="jxr_linenumber" name="L220" href="#L220">220</a> 
-<a class="jxr_linenumber" name="L221" href="#L221">221</a>         <em class="jxr_comment">// Clear and make sure summaries are indistinguishable from empty summary</em>
-<a class="jxr_linenumber" name="L222" href="#L222">222</a>         u.clear();
-<a class="jxr_linenumber" name="L223" href="#L223">223</a>         t.clear();
-<a class="jxr_linenumber" name="L224" href="#L224">224</a>         Assert.assertTrue(<span class="jxr_string">"empty instances should be equal"</span>, t.equals(u));
-<a class="jxr_linenumber" name="L225" href="#L225">225</a>         Assert.assertTrue(<span class="jxr_string">"empty instances should be equal"</span>, u.equals(t));
-<a class="jxr_linenumber" name="L226" href="#L226">226</a>         Assert.assertEquals(<span class="jxr_string">"empty hash code"</span>, emptyHash, t.hashCode());
-<a class="jxr_linenumber" name="L227" href="#L227">227</a>         Assert.assertEquals(<span class="jxr_string">"empty hash code"</span>, emptyHash, u.hashCode());
-<a class="jxr_linenumber" name="L228" href="#L228">228</a>     }
-<a class="jxr_linenumber" name="L229" href="#L229">229</a> 
-<a class="jxr_linenumber" name="L230" href="#L230">230</a>     @Test
-<a class="jxr_linenumber" name="L231" href="#L231">231</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testCopy() {
-<a class="jxr_linenumber" name="L232" href="#L232">232</a>         SummaryStatistics u = createSummaryStatistics();
-<a class="jxr_linenumber" name="L233" href="#L233">233</a>         u.addValue(2d);
-<a class="jxr_linenumber" name="L234" href="#L234">234</a>         u.addValue(1d);
-<a class="jxr_linenumber" name="L235" href="#L235">235</a>         u.addValue(3d);
-<a class="jxr_linenumber" name="L236" href="#L236">236</a>         u.addValue(4d);
-<a class="jxr_linenumber" name="L237" href="#L237">237</a>         SummaryStatistics v = <strong class="jxr_keyword">new</strong> SummaryStatistics(u);
-<a class="jxr_linenumber" name="L238" href="#L238">238</a>         Assert.assertEquals(u, v);
-<a class="jxr_linenumber" name="L239" href="#L239">239</a>         Assert.assertEquals(v, u);
-<a class="jxr_linenumber" name="L240" href="#L240">240</a> 
-<a class="jxr_linenumber" name="L241" href="#L241">241</a>         <em class="jxr_comment">// Make sure both behave the same with additional values added</em>
-<a class="jxr_linenumber" name="L242" href="#L242">242</a>         u.addValue(7d);
-<a class="jxr_linenumber" name="L243" href="#L243">243</a>         u.addValue(9d);
-<a class="jxr_linenumber" name="L244" href="#L244">244</a>         u.addValue(11d);
-<a class="jxr_linenumber" name="L245" href="#L245">245</a>         u.addValue(23d);
-<a class="jxr_linenumber" name="L246" href="#L246">246</a>         v.addValue(7d);
-<a class="jxr_linenumber" name="L247" href="#L247">247</a>         v.addValue(9d);
-<a class="jxr_linenumber" name="L248" href="#L248">248</a>         v.addValue(11d);
-<a class="jxr_linenumber" name="L249" href="#L249">249</a>         v.addValue(23d);
-<a class="jxr_linenumber" name="L250" href="#L250">250</a>         Assert.assertEquals(u, v);
-<a class="jxr_linenumber" name="L251" href="#L251">251</a>         Assert.assertEquals(v, u);
-<a class="jxr_linenumber" name="L252" href="#L252">252</a> 
-<a class="jxr_linenumber" name="L253" href="#L253">253</a>         <em class="jxr_comment">// Check implementation pointers are preserved</em>
-<a class="jxr_linenumber" name="L254" href="#L254">254</a>         u.clear();
-<a class="jxr_linenumber" name="L255" href="#L255">255</a>         u.setSumImpl(<strong class="jxr_keyword">new</strong> Sum());
-<a class="jxr_linenumber" name="L256" href="#L256">256</a>         SummaryStatistics.copy(u,v);
-<a class="jxr_linenumber" name="L257" href="#L257">257</a>         Assert.assertEquals(u.getSumImpl(), v.getSumImpl());
+<a class="jxr_linenumber" name="L186" href="#L186">186</a>     @Test
+<a class="jxr_linenumber" name="L187" href="#L187">187</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testEqualsAndHashCode() {
+<a class="jxr_linenumber" name="L188" href="#L188">188</a>         SummaryStatistics u = createSummaryStatistics();
+<a class="jxr_linenumber" name="L189" href="#L189">189</a>         SummaryStatistics t = <strong class="jxr_keyword">null</strong>;
+<a class="jxr_linenumber" name="L190" href="#L190">190</a>         <strong class="jxr_keyword">int</strong> emptyHash = u.hashCode();
+<a class="jxr_linenumber" name="L191" href="#L191">191</a>         Assert.assertTrue(<span class="jxr_string">"reflexive"</span>, u.equals(u));
+<a class="jxr_linenumber" name="L192" href="#L192">192</a>         Assert.assertFalse(<span class="jxr_string">"non-null compared to null"</span>, u.equals(t));
+<a class="jxr_linenumber" name="L193" href="#L193">193</a>         Assert.assertFalse(<span class="jxr_string">"wrong type"</span>, u.equals(Double.valueOf(0)));
+<a class="jxr_linenumber" name="L194" href="#L194">194</a>         t = createSummaryStatistics();
+<a class="jxr_linenumber" name="L195" href="#L195">195</a>         Assert.assertTrue(<span class="jxr_string">"empty instances should be equal"</span>, t.equals(u));
+<a class="jxr_linenumber" name="L196" href="#L196">196</a>         Assert.assertTrue(<span class="jxr_string">"empty instances should be equal"</span>, u.equals(t));
+<a class="jxr_linenumber" name="L197" href="#L197">197</a>         Assert.assertEquals(<span class="jxr_string">"empty hash code"</span>, emptyHash, t.hashCode());
+<a class="jxr_linenumber" name="L198" href="#L198">198</a> 
+<a class="jxr_linenumber" name="L199" href="#L199">199</a>         <em class="jxr_comment">// Add some data to u</em>
+<a class="jxr_linenumber" name="L200" href="#L200">200</a>         u.addValue(2d);
+<a class="jxr_linenumber" name="L201" href="#L201">201</a>         u.addValue(1d);
+<a class="jxr_linenumber" name="L202" href="#L202">202</a>         u.addValue(3d);
+<a class="jxr_linenumber" name="L203" href="#L203">203</a>         u.addValue(4d);
+<a class="jxr_linenumber" name="L204" href="#L204">204</a>         Assert.assertFalse(<span class="jxr_string">"different n's should make instances not equal"</span>, t.equals(u));
+<a class="jxr_linenumber" name="L205" href="#L205">205</a>         Assert.assertFalse(<span class="jxr_string">"different n's should make instances not equal"</span>, u.equals(t));
+<a class="jxr_linenumber" name="L206" href="#L206">206</a>         Assert.assertTrue(<span class="jxr_string">"different n's should make hashcodes different"</span>,
+<a class="jxr_linenumber" name="L207" href="#L207">207</a>                 u.hashCode() != t.hashCode());
+<a class="jxr_linenumber" name="L208" href="#L208">208</a> 
+<a class="jxr_linenumber" name="L209" href="#L209">209</a>         <em class="jxr_comment">//Add data in same order to t</em>
+<a class="jxr_linenumber" name="L210" href="#L210">210</a>         t.addValue(2d);
+<a class="jxr_linenumber" name="L211" href="#L211">211</a>         t.addValue(1d);
+<a class="jxr_linenumber" name="L212" href="#L212">212</a>         t.addValue(3d);
+<a class="jxr_linenumber" name="L213" href="#L213">213</a>         t.addValue(4d);
+<a class="jxr_linenumber" name="L214" href="#L214">214</a>         Assert.assertTrue(<span class="jxr_string">"summaries based on same data should be equal"</span>, t.equals(u));
+<a class="jxr_linenumber" name="L215" href="#L215">215</a>         Assert.assertTrue(<span class="jxr_string">"summaries based on same data should be equal"</span>, u.equals(t));
+<a class="jxr_linenumber" name="L216" href="#L216">216</a>         Assert.assertEquals(<span class="jxr_string">"summaries based on same data should have same hashcodes"</span>,
+<a class="jxr_linenumber" name="L217" href="#L217">217</a>                 u.hashCode(), t.hashCode());
+<a class="jxr_linenumber" name="L218" href="#L218">218</a> 
+<a class="jxr_linenumber" name="L219" href="#L219">219</a>         <em class="jxr_comment">// Clear and make sure summaries are indistinguishable from empty summary</em>
+<a class="jxr_linenumber" name="L220" href="#L220">220</a>         u.clear();
+<a class="jxr_linenumber" name="L221" href="#L221">221</a>         t.clear();
+<a class="jxr_linenumber" name="L222" href="#L222">222</a>         Assert.assertTrue(<span class="jxr_string">"empty instances should be equal"</span>, t.equals(u));
+<a class="jxr_linenumber" name="L223" href="#L223">223</a>         Assert.assertTrue(<span class="jxr_string">"empty instances should be equal"</span>, u.equals(t));
+<a class="jxr_linenumber" name="L224" href="#L224">224</a>         Assert.assertEquals(<span class="jxr_string">"empty hash code"</span>, emptyHash, t.hashCode());
+<a class="jxr_linenumber" name="L225" href="#L225">225</a>         Assert.assertEquals(<span class="jxr_string">"empty hash code"</span>, emptyHash, u.hashCode());
+<a class="jxr_linenumber" name="L226" href="#L226">226</a>     }
+<a class="jxr_linenumber" name="L227" href="#L227">227</a> 
+<a class="jxr_linenumber" name="L228" href="#L228">228</a>     @Test
+<a class="jxr_linenumber" name="L229" href="#L229">229</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testCopy() {
+<a class="jxr_linenumber" name="L230" href="#L230">230</a>         SummaryStatistics u = createSummaryStatistics();
+<a class="jxr_linenumber" name="L231" href="#L231">231</a>         u.addValue(2d);
+<a class="jxr_linenumber" name="L232" href="#L232">232</a>         u.addValue(1d);
+<a class="jxr_linenumber" name="L233" href="#L233">233</a>         u.addValue(3d);
+<a class="jxr_linenumber" name="L234" href="#L234">234</a>         u.addValue(4d);
+<a class="jxr_linenumber" name="L235" href="#L235">235</a>         SummaryStatistics v = <strong class="jxr_keyword">new</strong> SummaryStatistics(u);
+<a class="jxr_linenumber" name="L236" href="#L236">236</a>         Assert.assertEquals(u, v);
+<a class="jxr_linenumber" name="L237" href="#L237">237</a>         Assert.assertEquals(v, u);
+<a class="jxr_linenumber" name="L238" href="#L238">238</a> 
+<a class="jxr_linenumber" name="L239" href="#L239">239</a>         <em class="jxr_comment">// Make sure both behave the same with additional values added</em>
+<a class="jxr_linenumber" name="L240" href="#L240">240</a>         u.addValue(7d);
+<a class="jxr_linenumber" name="L241" href="#L241">241</a>         u.addValue(9d);
+<a class="jxr_linenumber" name="L242" href="#L242">242</a>         u.addValue(11d);
+<a class="jxr_linenumber" name="L243" href="#L243">243</a>         u.addValue(23d);
+<a class="jxr_linenumber" name="L244" href="#L244">244</a>         v.addValue(7d);
+<a class="jxr_linenumber" name="L245" href="#L245">245</a>         v.addValue(9d);
+<a class="jxr_linenumber" name="L246" href="#L246">246</a>         v.addValue(11d);
+<a class="jxr_linenumber" name="L247" href="#L247">247</a>         v.addValue(23d);
+<a class="jxr_linenumber" name="L248" href="#L248">248</a>         Assert.assertEquals(u, v);
+<a class="jxr_linenumber" name="L249" href="#L249">249</a>         Assert.assertEquals(v, u);
+<a class="jxr_linenumber" name="L250" href="#L250">250</a> 
+<a class="jxr_linenumber" name="L251" href="#L251">251</a>         <em class="jxr_comment">// Check implementation pointers are preserved</em>
+<a class="jxr_linenumber" name="L252" href="#L252">252</a>         u.clear();
+<a class="jxr_linenumber" name="L253" href="#L253">253</a>         u.setSumImpl(<strong class="jxr_keyword">new</strong> Sum());
+<a class="jxr_linenumber" name="L254" href="#L254">254</a>         SummaryStatistics.copy(u,v);
+<a class="jxr_linenumber" name="L255" href="#L255">255</a>         Assert.assertEquals(u.getSumImpl(), v.getSumImpl());
+<a class="jxr_linenumber" name="L256" href="#L256">256</a> 
+<a class="jxr_linenumber" name="L257" href="#L257">257</a>     }
 <a class="jxr_linenumber" name="L258" href="#L258">258</a> 
-<a class="jxr_linenumber" name="L259" href="#L259">259</a>     }
-<a class="jxr_linenumber" name="L260" href="#L260">260</a> 
-<a class="jxr_linenumber" name="L261" href="#L261">261</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> verifySummary(SummaryStatistics u, StatisticalSummary s) {
-<a class="jxr_linenumber" name="L262" href="#L262">262</a>         Assert.assertEquals(<span class="jxr_string">"N"</span>,s.getN(),u.getN());
-<a class="jxr_linenumber" name="L263" href="#L263">263</a>         TestUtils.assertEquals(<span class="jxr_string">"sum"</span>,s.getSum(),u.getSum(),tolerance);
-<a class="jxr_linenumber" name="L264" href="#L264">264</a>         TestUtils.assertEquals(<span class="jxr_string">"var"</span>,s.getVariance(),u.getVariance(),tolerance);
-<a class="jxr_linenumber" name="L265" href="#L265">265</a>         TestUtils.assertEquals(<span class="jxr_string">"std"</span>,s.getStandardDeviation(),u.getStandardDeviation(),tolerance);
-<a class="jxr_linenumber" name="L266" href="#L266">266</a>         TestUtils.assertEquals(<span class="jxr_string">"mean"</span>,s.getMean(),u.getMean(),tolerance);
-<a class="jxr_linenumber" name="L267" href="#L267">267</a>         TestUtils.assertEquals(<span class="jxr_string">"min"</span>,s.getMin(),u.getMin(),tolerance);
-<a class="jxr_linenumber" name="L268" href="#L268">268</a>         TestUtils.assertEquals(<span class="jxr_string">"max"</span>,s.getMax(),u.getMax(),tolerance);
-<a class="jxr_linenumber" name="L269" href="#L269">269</a>     }
-<a class="jxr_linenumber" name="L270" href="#L270">270</a> 
-<a class="jxr_linenumber" name="L271" href="#L271">271</a>     @Test
-<a class="jxr_linenumber" name="L272" href="#L272">272</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testSetterInjection() {
-<a class="jxr_linenumber" name="L273" href="#L273">273</a>         SummaryStatistics u = createSummaryStatistics();
-<a class="jxr_linenumber" name="L274" href="#L274">274</a>         u.setMeanImpl(<strong class="jxr_keyword">new</strong> Sum());
-<a class="jxr_linenumber" name="L275" href="#L275">275</a>         u.setSumLogImpl(<strong class="jxr_keyword">new</strong> Sum());
-<a class="jxr_linenumber" name="L276" href="#L276">276</a>         u.addValue(1);
-<a class="jxr_linenumber" name="L277" href="#L277">277</a>         u.addValue(3);
-<a class="jxr_linenumber" name="L278" href="#L278">278</a>         Assert.assertEquals(4, u.getMean(), 1E-14);
-<a class="jxr_linenumber" name="L279" href="#L279">279</a>         Assert.assertEquals(4, u.getSumOfLogs(), 1E-14);
-<a class="jxr_linenumber" name="L280" href="#L280">280</a>         Assert.assertEquals(FastMath.exp(2), u.getGeometricMean(), 1E-14);
-<a class="jxr_linenumber" name="L281" href="#L281">281</a>         u.clear();
-<a class="jxr_linenumber" name="L282" href="#L282">282</a>         u.addValue(1);
-<a class="jxr_linenumber" name="L283" href="#L283">283</a>         u.addValue(2);
-<a class="jxr_linenumber" name="L284" href="#L284">284</a>         Assert.assertEquals(3, u.getMean(), 1E-14);
-<a class="jxr_linenumber" name="L285" href="#L285">285</a>         u.clear();
-<a class="jxr_linenumber" name="L286" href="#L286">286</a>         u.setMeanImpl(<strong class="jxr_keyword">new</strong> Mean()); <em class="jxr_comment">// OK after clear</em>
-<a class="jxr_linenumber" name="L287" href="#L287">287</a>     }
-<a class="jxr_linenumber" name="L288" href="#L288">288</a> 
-<a class="jxr_linenumber" name="L289" href="#L289">289</a>     @Test
-<a class="jxr_linenumber" name="L290" href="#L290">290</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testSetterIllegalState() {
-<a class="jxr_linenumber" name="L291" href="#L291">291</a>         SummaryStatistics u = createSummaryStatistics();
-<a class="jxr_linenumber" name="L292" href="#L292">292</a>         u.addValue(1);
-<a class="jxr_linenumber" name="L293" href="#L293">293</a>         u.addValue(3);
-<a class="jxr_linenumber" name="L294" href="#L294">294</a>         <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="L295" href="#L295">295</a>             u.setMeanImpl(<strong class="jxr_keyword">new</strong> Sum());
-<a class="jxr_linenumber" name="L296" href="#L296">296</a>             Assert.fail(<span class="jxr_string">"Expecting IllegalStateException"</span>);
-<a class="jxr_linenumber" name="L297" href="#L297">297</a>         } <strong class="jxr_keyword">catch</strong> (IllegalStateException ex) {
-<a class="jxr_linenumber" name="L298" href="#L298">298</a>             <em class="jxr_comment">// expected</em>
-<a class="jxr_linenumber" name="L299" href="#L299">299</a>         }
-<a class="jxr_linenumber" name="L300" href="#L300">300</a>     }
-<a class="jxr_linenumber" name="L301" href="#L301">301</a>     
-<a class="jxr_linenumber" name="L302" href="#L302">302</a>     
-<a class="jxr_linenumber" name="L303" href="#L303">303</a>     <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="L304" href="#L304">304</a> <em class="jxr_javadoccomment">     * JIRA: MATH-691</em>
-<a class="jxr_linenumber" name="L305" href="#L305">305</a> <em class="jxr_javadoccomment">     */</em>
-<a class="jxr_linenumber" name="L306" href="#L306">306</a>     @Test
-<a class="jxr_linenumber" name="L307" href="#L307">307</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testOverrideVarianceWithMathClass() {
-<a class="jxr_linenumber" name="L308" href="#L308">308</a>         <strong class="jxr_keyword">double</strong>[] scores = {1, 2, 3, 4};
-<a class="jxr_linenumber" name="L309" href="#L309">309</a>         SummaryStatistics stats = <strong class="jxr_keyword">new</strong> SummaryStatistics();
-<a class="jxr_linenumber" name="L310" href="#L310">310</a>         stats.setVarianceImpl(<strong class="jxr_keyword">new</strong> Variance(false)); <em class="jxr_comment">//use "population variance"</em>
-<a class="jxr_linenumber" name="L311" href="#L311">311</a>         <strong class="jxr_keyword">for</strong>(<strong class="jxr_keyword">double</strong> i : scores) {
-<a class="jxr_linenumber" name="L312" href="#L312">312</a>           stats.addValue(i);
-<a class="jxr_linenumber" name="L313" href="#L313">313</a>         }
-<a class="jxr_linenumber" name="L314" href="#L314">314</a>         Assert.assertEquals((<strong class="jxr_keyword">new</strong> Variance(false)).evaluate(scores),stats.getVariance(), 0); 
-<a class="jxr_linenumber" name="L315" href="#L315">315</a>     }
-<a class="jxr_linenumber" name="L316" href="#L316">316</a>     
-<a class="jxr_linenumber" name="L317" href="#L317">317</a>     @Test
-<a class="jxr_linenumber" name="L318" href="#L318">318</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testOverrideMeanWithMathClass() {
-<a class="jxr_linenumber" name="L319" href="#L319">319</a>         <strong class="jxr_keyword">double</strong>[] scores = {1, 2, 3, 4};
-<a class="jxr_linenumber" name="L320" href="#L320">320</a>         SummaryStatistics stats = <strong class="jxr_keyword">new</strong> SummaryStatistics();
-<a class="jxr_linenumber" name="L321" href="#L321">321</a>         stats.setMeanImpl(<strong class="jxr_keyword">new</strong> Mean()); 
-<a class="jxr_linenumber" name="L322" href="#L322">322</a>         <strong class="jxr_keyword">for</strong>(<strong class="jxr_keyword">double</strong> i : scores) {
-<a class="jxr_linenumber" name="L323" href="#L323">323</a>           stats.addValue(i);
-<a class="jxr_linenumber" name="L324" href="#L324">324</a>         }
-<a class="jxr_linenumber" name="L325" href="#L325">325</a>         Assert.assertEquals((<strong class="jxr_keyword">new</strong> Mean()).evaluate(scores),stats.getMean(), 0); 
-<a class="jxr_linenumber" name="L326" href="#L326">326</a>     }
-<a class="jxr_linenumber" name="L327" href="#L327">327</a>     
-<a class="jxr_linenumber" name="L328" href="#L328">328</a>     @Test
-<a class="jxr_linenumber" name="L329" href="#L329">329</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testOverrideGeoMeanWithMathClass() {
-<a class="jxr_linenumber" name="L330" href="#L330">330</a>         <strong class="jxr_keyword">double</strong>[] scores = {1, 2, 3, 4};
-<a class="jxr_linenumber" name="L331" href="#L331">331</a>         SummaryStatistics stats = <strong class="jxr_keyword">new</strong> SummaryStatistics();
-<a class="jxr_linenumber" name="L332" href="#L332">332</a>         stats.setGeoMeanImpl(<strong class="jxr_keyword">new</strong> GeometricMean()); 
-<a class="jxr_linenumber" name="L333" href="#L333">333</a>         <strong class="jxr_keyword">for</strong>(<strong class="jxr_keyword">double</strong> i : scores) {
-<a class="jxr_linenumber" name="L334" href="#L334">334</a>           stats.addValue(i);
-<a class="jxr_linenumber" name="L335" href="#L335">335</a>         }
-<a class="jxr_linenumber" name="L336" href="#L336">336</a>         Assert.assertEquals((<strong class="jxr_keyword">new</strong> GeometricMean()).evaluate(scores),stats.getGeometricMean(), 0); 
-<a class="jxr_linenumber" name="L337" href="#L337">337</a>     }
-<a class="jxr_linenumber" name="L338" href="#L338">338</a>     
-<a class="jxr_linenumber" name="L339" href="#L339">339</a>     @Test
-<a class="jxr_linenumber" name="L340" href="#L340">340</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testToString() {
-<a class="jxr_linenumber" name="L341" href="#L341">341</a>     	SummaryStatistics u = createSummaryStatistics();
-<a class="jxr_linenumber" name="L342" href="#L342">342</a>     	<strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; 5; i++) {
-<a class="jxr_linenumber" name="L343" href="#L343">343</a>     		u.addValue(i);
-<a class="jxr_linenumber" name="L344" href="#L344">344</a>     	}
-<a class="jxr_linenumber" name="L345" href="#L345">345</a>     	<strong class="jxr_keyword">final</strong> String[] labels = {<span class="jxr_string">"min"</span>, <span class="jxr_string">"max"</span>, <span class="jxr_string">"sum"</span>, <span class="jxr_string">"geometric mean"</span>, <span class="jxr_string">"variance"</span>,
-<a class="jxr_linenumber" name="L346" href="#L346">346</a>     			<span class="jxr_string">"population variance"</span>, <span class="jxr_string">"second moment"</span>, <span class="jxr_string">"sum of squares"</span>, <span class="jxr_string">"standard deviation"</span>,
-<a class="jxr_linenumber" name="L347" href="#L347">347</a>     	<span class="jxr_string">"sum of logs"</span>};
-<a class="jxr_linenumber" name="L348" href="#L348">348</a>     	<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">double</strong>[] values = {u.getMin(), u.getMax(), u.getSum(), u.getGeometricMean(),
-<a class="jxr_linenumber" name="L349" href="#L349">349</a>     			u.getVariance(), u.getPopulationVariance(), u.getSecondMoment(), u.getSumsq(),
-<a class="jxr_linenumber" name="L350" href="#L350">350</a>     			u.getStandardDeviation(), u.getSumOfLogs()};
-<a class="jxr_linenumber" name="L351" href="#L351">351</a>     	<strong class="jxr_keyword">final</strong> String toString = u.toString();
-<a class="jxr_linenumber" name="L352" href="#L352">352</a>     	Assert.assertTrue(toString.indexOf(<span class="jxr_string">"n: "</span> + u.getN()) &gt; 0); <em class="jxr_comment">// getN() returns a long</em>
-<a class="jxr_linenumber" name="L353" href="#L353">353</a>     	<strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; values.length; i++) {
-<a class="jxr_linenumber" name="L354" href="#L354">354</a>     		Assert.assertTrue(toString.indexOf(labels[i] + <span class="jxr_string">": "</span> + String.valueOf(values[i])) &gt; 0);
-<a class="jxr_linenumber" name="L355" href="#L355">355</a>     	}
-<a class="jxr_linenumber" name="L356" href="#L356">356</a>     }
-<a class="jxr_linenumber" name="L357" href="#L357">357</a> }
+<a class="jxr_linenumber" name="L259" href="#L259">259</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> verifySummary(SummaryStatistics u, StatisticalSummary s) {
+<a class="jxr_linenumber" name="L260" href="#L260">260</a>         Assert.assertEquals(<span class="jxr_string">"N"</span>,s.getN(),u.getN());
+<a class="jxr_linenumber" name="L261" href="#L261">261</a>         TestUtils.assertEquals(<span class="jxr_string">"sum"</span>,s.getSum(),u.getSum(),tolerance);
+<a class="jxr_linenumber" name="L262" href="#L262">262</a>         TestUtils.assertEquals(<span class="jxr_string">"var"</span>,s.getVariance(),u.getVariance(),tolerance);
+<a class="jxr_linenumber" name="L263" href="#L263">263</a>         TestUtils.assertEquals(<span class="jxr_string">"std"</span>,s.getStandardDeviation(),u.getStandardDeviation(),tolerance);
+<a class="jxr_linenumber" name="L264" href="#L264">264</a>         TestUtils.assertEquals(<span class="jxr_string">"mean"</span>,s.getMean(),u.getMean(),tolerance);
+<a class="jxr_linenumber" name="L265" href="#L265">265</a>         TestUtils.assertEquals(<span class="jxr_string">"min"</span>,s.getMin(),u.getMin(),tolerance);
+<a class="jxr_linenumber" name="L266" href="#L266">266</a>         TestUtils.assertEquals(<span class="jxr_string">"max"</span>,s.getMax(),u.getMax(),tolerance);
+<a class="jxr_linenumber" name="L267" href="#L267">267</a>     }
+<a class="jxr_linenumber" name="L268" href="#L268">268</a> 
+<a class="jxr_linenumber" name="L269" href="#L269">269</a>     @Test
+<a class="jxr_linenumber" name="L270" href="#L270">270</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testSetterInjection() {
+<a class="jxr_linenumber" name="L271" href="#L271">271</a>         SummaryStatistics u = createSummaryStatistics();
+<a class="jxr_linenumber" name="L272" href="#L272">272</a>         u.setMeanImpl(<strong class="jxr_keyword">new</strong> Sum());
+<a class="jxr_linenumber" name="L273" href="#L273">273</a>         u.setSumLogImpl(<strong class="jxr_keyword">new</strong> Sum());
+<a class="jxr_linenumber" name="L274" href="#L274">274</a>         u.addValue(1);
+<a class="jxr_linenumber" name="L275" href="#L275">275</a>         u.addValue(3);
+<a class="jxr_linenumber" name="L276" href="#L276">276</a>         Assert.assertEquals(4, u.getMean(), 1E-14);
+<a class="jxr_linenumber" name="L277" href="#L277">277</a>         Assert.assertEquals(4, u.getSumOfLogs(), 1E-14);
+<a class="jxr_linenumber" name="L278" href="#L278">278</a>         Assert.assertEquals(FastMath.exp(2), u.getGeometricMean(), 1E-14);
+<a class="jxr_linenumber" name="L279" href="#L279">279</a>         u.clear();
+<a class="jxr_linenumber" name="L280" href="#L280">280</a>         u.addValue(1);
+<a class="jxr_linenumber" name="L281" href="#L281">281</a>         u.addValue(2);
+<a class="jxr_linenumber" name="L282" href="#L282">282</a>         Assert.assertEquals(3, u.getMean(), 1E-14);
+<a class="jxr_linenumber" name="L283" href="#L283">283</a>         u.clear();
+<a class="jxr_linenumber" name="L284" href="#L284">284</a>         u.setMeanImpl(<strong class="jxr_keyword">new</strong> Mean()); <em class="jxr_comment">// OK after clear</em>
+<a class="jxr_linenumber" name="L285" href="#L285">285</a>     }
+<a class="jxr_linenumber" name="L286" href="#L286">286</a> 
+<a class="jxr_linenumber" name="L287" href="#L287">287</a>     @Test
+<a class="jxr_linenumber" name="L288" href="#L288">288</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testSetterIllegalState() {
+<a class="jxr_linenumber" name="L289" href="#L289">289</a>         SummaryStatistics u = createSummaryStatistics();
+<a class="jxr_linenumber" name="L290" href="#L290">290</a>         u.addValue(1);
+<a class="jxr_linenumber" name="L291" href="#L291">291</a>         u.addValue(3);
+<a class="jxr_linenumber" name="L292" href="#L292">292</a>         <strong class="jxr_keyword">try</strong> {
+<a class="jxr_linenumber" name="L293" href="#L293">293</a>             u.setMeanImpl(<strong class="jxr_keyword">new</strong> Sum());
+<a class="jxr_linenumber" name="L294" href="#L294">294</a>             Assert.fail(<span class="jxr_string">"Expecting IllegalStateException"</span>);
+<a class="jxr_linenumber" name="L295" href="#L295">295</a>         } <strong class="jxr_keyword">catch</strong> (IllegalStateException ex) {
+<a class="jxr_linenumber" name="L296" href="#L296">296</a>             <em class="jxr_comment">// expected</em>
+<a class="jxr_linenumber" name="L297" href="#L297">297</a>         }
+<a class="jxr_linenumber" name="L298" href="#L298">298</a>     }
+<a class="jxr_linenumber" name="L299" href="#L299">299</a>     
+<a class="jxr_linenumber" name="L300" href="#L300">300</a>     @Test
+<a class="jxr_linenumber" name="L301" href="#L301">301</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testQuadraticMean() {
+<a class="jxr_linenumber" name="L302" href="#L302">302</a>         <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">double</strong>[] values = { 1.2, 3.4, 5.6, 7.89 };
+<a class="jxr_linenumber" name="L303" href="#L303">303</a>         <strong class="jxr_keyword">final</strong> SummaryStatistics stats = createSummaryStatistics();
+<a class="jxr_linenumber" name="L304" href="#L304">304</a> 
+<a class="jxr_linenumber" name="L305" href="#L305">305</a>         <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> len = values.length;
+<a class="jxr_linenumber" name="L306" href="#L306">306</a>         <strong class="jxr_keyword">double</strong> expected = 0;
+<a class="jxr_linenumber" name="L307" href="#L307">307</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; len; i++) {
+<a class="jxr_linenumber" name="L308" href="#L308">308</a>             <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">double</strong> v = values[i];
+<a class="jxr_linenumber" name="L309" href="#L309">309</a>             expected += v * v / len;
+<a class="jxr_linenumber" name="L310" href="#L310">310</a> 
+<a class="jxr_linenumber" name="L311" href="#L311">311</a>             stats.addValue(v);
+<a class="jxr_linenumber" name="L312" href="#L312">312</a>         }
+<a class="jxr_linenumber" name="L313" href="#L313">313</a>         expected = Math.sqrt(expected);
+<a class="jxr_linenumber" name="L314" href="#L314">314</a> 
+<a class="jxr_linenumber" name="L315" href="#L315">315</a>         Assert.assertEquals(expected, stats.getQuadraticMean(), Math.ulp(expected));
+<a class="jxr_linenumber" name="L316" href="#L316">316</a>     }
+<a class="jxr_linenumber" name="L317" href="#L317">317</a>     
+<a class="jxr_linenumber" name="L318" href="#L318">318</a>     <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="L319" href="#L319">319</a> <em class="jxr_javadoccomment">     * JIRA: MATH-691</em>
+<a class="jxr_linenumber" name="L320" href="#L320">320</a> <em class="jxr_javadoccomment">     */</em>
+<a class="jxr_linenumber" name="L321" href="#L321">321</a>     @Test
+<a class="jxr_linenumber" name="L322" href="#L322">322</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testOverrideVarianceWithMathClass() {
+<a class="jxr_linenumber" name="L323" href="#L323">323</a>         <strong class="jxr_keyword">double</strong>[] scores = {1, 2, 3, 4};
+<a class="jxr_linenumber" name="L324" href="#L324">324</a>         SummaryStatistics stats = <strong class="jxr_keyword">new</strong> SummaryStatistics();
+<a class="jxr_linenumber" name="L325" href="#L325">325</a>         stats.setVarianceImpl(<strong class="jxr_keyword">new</strong> Variance(false)); <em class="jxr_comment">//use "population variance"</em>
+<a class="jxr_linenumber" name="L326" href="#L326">326</a>         <strong class="jxr_keyword">for</strong>(<strong class="jxr_keyword">double</strong> i : scores) {
+<a class="jxr_linenumber" name="L327" href="#L327">327</a>           stats.addValue(i);
+<a class="jxr_linenumber" name="L328" href="#L328">328</a>         }
+<a class="jxr_linenumber" name="L329" href="#L329">329</a>         Assert.assertEquals((<strong class="jxr_keyword">new</strong> Variance(false)).evaluate(scores),stats.getVariance(), 0); 
+<a class="jxr_linenumber" name="L330" href="#L330">330</a>     }
+<a class="jxr_linenumber" name="L331" href="#L331">331</a>     
+<a class="jxr_linenumber" name="L332" href="#L332">332</a>     @Test
+<a class="jxr_linenumber" name="L333" href="#L333">333</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testOverrideMeanWithMathClass() {
+<a class="jxr_linenumber" name="L334" href="#L334">334</a>         <strong class="jxr_keyword">double</strong>[] scores = {1, 2, 3, 4};
+<a class="jxr_linenumber" name="L335" href="#L335">335</a>         SummaryStatistics stats = <strong class="jxr_keyword">new</strong> SummaryStatistics();
+<a class="jxr_linenumber" name="L336" href="#L336">336</a>         stats.setMeanImpl(<strong class="jxr_keyword">new</strong> Mean()); 
+<a class="jxr_linenumber" name="L337" href="#L337">337</a>         <strong class="jxr_keyword">for</strong>(<strong class="jxr_keyword">double</strong> i : scores) {
+<a class="jxr_linenumber" name="L338" href="#L338">338</a>           stats.addValue(i);
+<a class="jxr_linenumber" name="L339" href="#L339">339</a>         }
+<a class="jxr_linenumber" name="L340" href="#L340">340</a>         Assert.assertEquals((<strong class="jxr_keyword">new</strong> Mean()).evaluate(scores),stats.getMean(), 0); 
+<a class="jxr_linenumber" name="L341" href="#L341">341</a>     }
+<a class="jxr_linenumber" name="L342" href="#L342">342</a>     
+<a class="jxr_linenumber" name="L343" href="#L343">343</a>     @Test
+<a class="jxr_linenumber" name="L344" href="#L344">344</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testOverrideGeoMeanWithMathClass() {
+<a class="jxr_linenumber" name="L345" href="#L345">345</a>         <strong class="jxr_keyword">double</strong>[] scores = {1, 2, 3, 4};
+<a class="jxr_linenumber" name="L346" href="#L346">346</a>         SummaryStatistics stats = <strong class="jxr_keyword">new</strong> SummaryStatistics();
+<a class="jxr_linenumber" name="L347" href="#L347">347</a>         stats.setGeoMeanImpl(<strong class="jxr_keyword">new</strong> GeometricMean()); 
+<a class="jxr_linenumber" name="L348" href="#L348">348</a>         <strong class="jxr_keyword">for</strong>(<strong class="jxr_keyword">double</strong> i : scores) {
+<a class="jxr_linenumber" name="L349" href="#L349">349</a>           stats.addValue(i);
+<a class="jxr_linenumber" name="L350" href="#L350">350</a>         }
+<a class="jxr_linenumber" name="L351" href="#L351">351</a>         Assert.assertEquals((<strong class="jxr_keyword">new</strong> GeometricMean()).evaluate(scores),stats.getGeometricMean(), 0); 
+<a class="jxr_linenumber" name="L352" href="#L352">352</a>     }
+<a class="jxr_linenumber" name="L353" href="#L353">353</a>     
+<a class="jxr_linenumber" name="L354" href="#L354">354</a>     @Test
+<a class="jxr_linenumber" name="L355" href="#L355">355</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testToString() {
+<a class="jxr_linenumber" name="L356" href="#L356">356</a>         SummaryStatistics u = createSummaryStatistics();
+<a class="jxr_linenumber" name="L357" href="#L357">357</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; 5; i++) {
+<a class="jxr_linenumber" name="L358" href="#L358">358</a>             u.addValue(i);
+<a class="jxr_linenumber" name="L359" href="#L359">359</a>         }
+<a class="jxr_linenumber" name="L360" href="#L360">360</a>         <strong class="jxr_keyword">final</strong> String[] labels = {<span class="jxr_string">"min"</span>, <span class="jxr_string">"max"</span>, <span class="jxr_string">"sum"</span>, <span class="jxr_string">"geometric mean"</span>, <span class="jxr_string">"variance"</span>,
+<a class="jxr_linenumber" name="L361" href="#L361">361</a>                 <span class="jxr_string">"population variance"</span>, <span class="jxr_string">"second moment"</span>, <span class="jxr_string">"sum of squares"</span>, <span class="jxr_string">"standard deviation"</span>,
+<a class="jxr_linenumber" name="L362" href="#L362">362</a>         <span class="jxr_string">"sum of logs"</span>};
+<a class="jxr_linenumber" name="L363" href="#L363">363</a>         <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">double</strong>[] values = {u.getMin(), u.getMax(), u.getSum(), u.getGeometricMean(),
+<a class="jxr_linenumber" name="L364" href="#L364">364</a>                 u.getVariance(), u.getPopulationVariance(), u.getSecondMoment(), u.getSumsq(),
+<a class="jxr_linenumber" name="L365" href="#L365">365</a>                 u.getStandardDeviation(), u.getSumOfLogs()};
+<a class="jxr_linenumber" name="L366" href="#L366">366</a>         <strong class="jxr_keyword">final</strong> String toString = u.toString();
+<a class="jxr_linenumber" name="L367" href="#L367">367</a>         Assert.assertTrue(toString.indexOf(<span class="jxr_string">"n: "</span> + u.getN()) &gt; 0); <em class="jxr_comment">// getN() returns a long</em>
+<a class="jxr_linenumber" name="L368" href="#L368">368</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; values.length; i++) {
+<a class="jxr_linenumber" name="L369" href="#L369">369</a>             Assert.assertTrue(toString.indexOf(labels[i] + <span class="jxr_string">": "</span> + String.valueOf(values[i])) &gt; 0);
+<a class="jxr_linenumber" name="L370" href="#L370">370</a>         }
+<a class="jxr_linenumber" name="L371" href="#L371">371</a>     }
+<a class="jxr_linenumber" name="L372" href="#L372">372</a> }
 </pre>
 <hr/>
 <div id="footer">Copyright &#169; 2003&#x2013;2015 <a href="http://www.apache.org/">The Apache Software Foundation</a>. All rights reserved.</div>

Modified: websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/moment/package-frame.html
==============================================================================
--- websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/moment/package-frame.html (original)
+++ websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/moment/package-frame.html Fri Apr 17 19:49:06 2015
@@ -3,7 +3,7 @@
 <html xml:lang="en" lang="en">
 	<head>
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-		<title>Apache Commons Math 3.4.1 Reference Package org.apache.commons.math3.stat.descriptive.moment</title>
+		<title>Apache Commons Math 3.5 Reference Package org.apache.commons.math3.stat.descriptive.moment</title>
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Modified: websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/moment/package-summary.html
==============================================================================
--- websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/moment/package-summary.html (original)
+++ websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/moment/package-summary.html Fri Apr 17 19:49:06 2015
@@ -3,7 +3,7 @@
 <html xml:lang="en" lang="en">
 	<head>
 		<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
-		<title>Apache Commons Math 3.4.1 Reference Package org.apache.commons.math3.stat.descriptive.moment</title>
+		<title>Apache Commons Math 3.5 Reference Package org.apache.commons.math3.stat.descriptive.moment</title>
 		<link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="style" />
 	</head>
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Modified: websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/package-frame.html
==============================================================================
--- websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/package-frame.html (original)
+++ websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/package-frame.html Fri Apr 17 19:49:06 2015
@@ -3,7 +3,7 @@
 <html xml:lang="en" lang="en">
 	<head>
 		<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
-		<title>Apache Commons Math 3.4.1 Reference Package org.apache.commons.math3.stat.descriptive</title>
+		<title>Apache Commons Math 3.5 Reference Package org.apache.commons.math3.stat.descriptive</title>
 		<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="style" />
 	</head>
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Modified: websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/package-summary.html
==============================================================================
--- websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/package-summary.html (original)
+++ websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/package-summary.html Fri Apr 17 19:49:06 2015
@@ -3,7 +3,7 @@
 <html xml:lang="en" lang="en">
 	<head>
 		<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
-		<title>Apache Commons Math 3.4.1 Reference Package org.apache.commons.math3.stat.descriptive</title>
+		<title>Apache Commons Math 3.5 Reference Package org.apache.commons.math3.stat.descriptive</title>
 		<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="style" />
 	</head>
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Modified: websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/rank/package-frame.html
==============================================================================
--- websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/rank/package-frame.html (original)
+++ websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/rank/package-frame.html Fri Apr 17 19:49:06 2015
@@ -3,7 +3,7 @@
 <html xml:lang="en" lang="en">
 	<head>
 		<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
-		<title>Apache Commons Math 3.4.1 Reference Package org.apache.commons.math3.stat.descriptive.rank</title>
+		<title>Apache Commons Math 3.5 Reference Package org.apache.commons.math3.stat.descriptive.rank</title>
 		<link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="style" />
 	</head>
 	<body>

Modified: websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/rank/package-summary.html
==============================================================================
--- websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/rank/package-summary.html (original)
+++ websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/rank/package-summary.html Fri Apr 17 19:49:06 2015
@@ -3,7 +3,7 @@
 <html xml:lang="en" lang="en">
 	<head>
 		<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
-		<title>Apache Commons Math 3.4.1 Reference Package org.apache.commons.math3.stat.descriptive.rank</title>
+		<title>Apache Commons Math 3.5 Reference Package org.apache.commons.math3.stat.descriptive.rank</title>
 		<link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="style" />
 	</head>
 	<body>

Modified: websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/summary/package-frame.html
==============================================================================
--- websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/summary/package-frame.html (original)
+++ websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/summary/package-frame.html Fri Apr 17 19:49:06 2015
@@ -3,7 +3,7 @@
 <html xml:lang="en" lang="en">
 	<head>
 		<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
-		<title>Apache Commons Math 3.4.1 Reference Package org.apache.commons.math3.stat.descriptive.summary</title>
+		<title>Apache Commons Math 3.5 Reference Package org.apache.commons.math3.stat.descriptive.summary</title>
 		<link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="style" />
 	</head>
 	<body>

Modified: websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/summary/package-summary.html
==============================================================================
--- websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/summary/package-summary.html (original)
+++ websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/descriptive/summary/package-summary.html Fri Apr 17 19:49:06 2015
@@ -3,7 +3,7 @@
 <html xml:lang="en" lang="en">
 	<head>
 		<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
-		<title>Apache Commons Math 3.4.1 Reference Package org.apache.commons.math3.stat.descriptive.summary</title>
+		<title>Apache Commons Math 3.5 Reference Package org.apache.commons.math3.stat.descriptive.summary</title>
 		<link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="style" />
 	</head>
 	<body>

Modified: websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/inference/package-frame.html
==============================================================================
--- websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/inference/package-frame.html (original)
+++ websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/inference/package-frame.html Fri Apr 17 19:49:06 2015
@@ -3,7 +3,7 @@
 <html xml:lang="en" lang="en">
 	<head>
 		<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
-		<title>Apache Commons Math 3.4.1 Reference Package org.apache.commons.math3.stat.inference</title>
+		<title>Apache Commons Math 3.5 Reference Package org.apache.commons.math3.stat.inference</title>
 		<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="style" />
 	</head>
 	<body>

Modified: websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/inference/package-summary.html
==============================================================================
--- websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/inference/package-summary.html (original)
+++ websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/inference/package-summary.html Fri Apr 17 19:49:06 2015
@@ -3,7 +3,7 @@
 <html xml:lang="en" lang="en">
 	<head>
 		<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
-		<title>Apache Commons Math 3.4.1 Reference Package org.apache.commons.math3.stat.inference</title>
+		<title>Apache Commons Math 3.5 Reference Package org.apache.commons.math3.stat.inference</title>
 		<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="style" />
 	</head>
 	<body>

Modified: websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/interval/package-frame.html
==============================================================================
--- websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/interval/package-frame.html (original)
+++ websites/production/commons/content/proper/commons-math/xref-test/org/apache/commons/math3/stat/interval/package-frame.html Fri Apr 17 19:49:06 2015
@@ -3,7 +3,7 @@
 <html xml:lang="en" lang="en">
 	<head>
 		<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
-		<title>Apache Commons Math 3.4.1 Reference Package org.apache.commons.math3.stat.interval</title>
+		<title>Apache Commons Math 3.5 Reference Package org.apache.commons.math3.stat.interval</title>
 		<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="style" />
 	</head>
 	<body>



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