M000081.html in rfuzz-0.9

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-  <title>mark (RFuzz::Sampler)</title>
+  <title>sd (RFuzz::Sampler)</title>
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-  <pre>    <span class="ruby-comment cmt"># File lib/rfuzz/stats.rb, line 94</span>
-94:     <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">mark</span>
-95:       <span class="ruby-ivar">@last_time</span> = <span class="ruby-constant">Time</span>.<span class="ruby-identifier">now</span>
-96:     <span class="ruby-keyword kw">end</span></pre>
+  <pre>    <span class="ruby-comment cmt"># File lib/rfuzz/stats.rb, line 79</span>
+79:     <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">sd</span>
+80:       <span class="ruby-comment cmt"># (sqrt( ((s).sumsq - ( (s).sum * (s).sum / (s).n)) / ((s).n-1) ))</span>
+81:       <span class="ruby-keyword kw">begin</span>
+82:         <span class="ruby-keyword kw">return</span> <span class="ruby-constant">Math</span>.<span class="ruby-identifier">sqrt</span>( (<span class="ruby-ivar">@sumsq</span> <span class="ruby-operator">-</span> ( <span class="ruby-ivar">@sum</span> <span class="ruby-operator">*</span> <span class="ruby-ivar">@sum</span> <span class="ruby-operator">/</span> <span class="ruby-ivar">@n</span>)) <span class="ruby-operator">/</span> (<span class="ruby-ivar">@n</span><span class="ruby-operator">-</span><span class="ruby-value">1</span>) )
+83:       <span class="ruby-keyword kw">rescue</span> <span class="ruby-constant">Errno</span><span class="ruby-operator">::</span><span class="ruby-constant">EDOM</span>
+84:         <span class="ruby-keyword kw">return</span> <span class="ruby-value">0</span><span class="ruby-value">.0</span>
+85:       <span class="ruby-keyword kw">end</span>
+86:     <span class="ruby-keyword kw">end</span></pre>
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