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C-Plus-Plus/d0/d08/realtime__stats_8cpp_source.html
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<div class="headertitle"><div class="title">realtime_stats.cpp</div></div>
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<a href="../../d0/d08/realtime__stats_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include &lt;cassert&gt;</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include &lt;cmath&gt;</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include &lt;iostream&gt;</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="keyword">namespace </span><a class="code hl_namespace" href="../../d2/dcf/namespacestatistics.html">statistics</a> {</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="foldopen" id="foldopen00027" data-start="{" data-end="};">
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"><a class="line" href="../../d7/d7c/classstatistics_1_1stats__computer1.html"> 27</a></span><span class="keyword">class </span><a class="code hl_class" href="../../d7/d7c/classstatistics_1_1stats__computer1.html">stats_computer1</a> {</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">public</span>:</div>
<div class="foldopen" id="foldopen00032" data-start="{" data-end="}">
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"><a class="line" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#aa13bf7c38de112f71921a5525d71a2f2"> 32</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#aa13bf7c38de112f71921a5525d71a2f2">new_val</a>(T x) {</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="keywordflow">if</span> (n == 0)</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> K = x;</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> n++;</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> T tmp = x - K;</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> Ex += tmp;</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> Ex2 += <span class="keyword">static_cast&lt;</span><span class="keywordtype">double</span><span class="keyword">&gt;</span>(tmp) * tmp;</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> }</div>
</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"><a class="line" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a390697dcee210b91823ceff04b25081b"> 42</a></span> <span class="keywordtype">double</span> <a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a390697dcee210b91823ceff04b25081b">mean</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> K + Ex / n; }</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"><a class="line" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a27f0a03e2fd2254f1c81fe668226bd92"> 45</a></span> <span class="keywordtype">double</span> <a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a27f0a03e2fd2254f1c81fe668226bd92">variance</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> (Ex2 - (Ex * Ex) / n) / (n - 1); }</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"><a class="line" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#af57e942d49f4fd70f059f224b4ac07e1"> 48</a></span> <span class="keywordtype">double</span> <a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#af57e942d49f4fd70f059f224b4ac07e1">std</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> std::sqrt(this-&gt;<a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a27f0a03e2fd2254f1c81fe668226bd92">variance</a>()); }</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span></div>
<div class="foldopen" id="foldopen00053" data-start="{" data-end="}">
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"><a class="line" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a350bf6c429691d3578c4dfc6679a0797"> 53</a></span> <span class="keyword">friend</span> std::istream &amp;<a class="code hl_friend" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a350bf6c429691d3578c4dfc6679a0797">operator&gt;&gt;</a>(std::istream &amp;input,</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <a class="code hl_class" href="../../d7/d7c/classstatistics_1_1stats__computer1.html">stats_computer1</a> &amp;stat) {</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> T val;</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> input &gt;&gt; val;</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> stat.<a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#aa13bf7c38de112f71921a5525d71a2f2">new_val</a>(val);</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keywordflow">return</span> input;</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> }</div>
</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> n = 0;</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keywordtype">double</span> Ex, Ex2;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> T K;</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span>};</div>
</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="foldopen" id="foldopen00072" data-start="{" data-end="};">
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"><a class="line" href="../../d8/dab/classstatistics_1_1stats__computer2.html"> 72</a></span><span class="keyword">class </span><a class="code hl_class" href="../../d8/dab/classstatistics_1_1stats__computer2.html">stats_computer2</a> {</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keyword">public</span>:</div>
<div class="foldopen" id="foldopen00077" data-start="{" data-end="}">
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"><a class="line" href="../../d8/dab/classstatistics_1_1stats__computer2.html#ade6de704deea24fdc88077b3d9a0d534"> 77</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#ade6de704deea24fdc88077b3d9a0d534">new_val</a>(T x) {</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> n++;</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keywordtype">double</span> delta = x - mu;</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> mu += delta / n;</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keywordtype">double</span> delta2 = x - mu;</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> M += delta * delta2;</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> }</div>
</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"><a class="line" href="../../d8/dab/classstatistics_1_1stats__computer2.html#a8290966ad468f2a8c266d008bc60720e"> 86</a></span> <span class="keywordtype">double</span> <a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#a8290966ad468f2a8c266d008bc60720e">mean</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> mu; }</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"><a class="line" href="../../d8/dab/classstatistics_1_1stats__computer2.html#af6198817084276113b3c064e87ce0555"> 89</a></span> <span class="keywordtype">double</span> <a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#af6198817084276113b3c064e87ce0555">variance</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> M / n; }</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span></div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"><a class="line" href="../../d8/dab/classstatistics_1_1stats__computer2.html#acf2e84df4fc386bb3295016ef8fd156e"> 92</a></span> <span class="keywordtype">double</span> <a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#acf2e84df4fc386bb3295016ef8fd156e">std</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> std::sqrt(this-&gt;<a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#af6198817084276113b3c064e87ce0555">variance</a>()); }</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span></div>
<div class="foldopen" id="foldopen00097" data-start="{" data-end="}">
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"><a class="line" href="../../d8/dab/classstatistics_1_1stats__computer2.html#ab444d485c9e7db35bdc2ff6b7775291a"> 97</a></span> <span class="keyword">friend</span> std::istream &amp;<a class="code hl_friend" href="../../d8/dab/classstatistics_1_1stats__computer2.html#ab444d485c9e7db35bdc2ff6b7775291a">operator&gt;&gt;</a>(std::istream &amp;input,</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <a class="code hl_class" href="../../d8/dab/classstatistics_1_1stats__computer2.html">stats_computer2</a> &amp;stat) {</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> T val;</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> input &gt;&gt; val;</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> stat.<a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#ade6de704deea24fdc88077b3d9a0d534">new_val</a>(val);</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keywordflow">return</span> input;</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> }</div>
</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> n = 0;</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordtype">double</span> mu = 0, var = 0, M = 0;</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span>};</div>
</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span>} <span class="comment">// namespace statistics</span></div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> </div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span><span class="keyword">using </span><a class="code hl_class" href="../../d7/d7c/classstatistics_1_1stats__computer1.html">statistics::stats_computer1</a>;</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span><span class="keyword">using </span><a class="code hl_class" href="../../d8/dab/classstatistics_1_1stats__computer2.html">statistics::stats_computer2</a>;</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span></div>
<div class="foldopen" id="foldopen00118" data-start="{" data-end="}">
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"><a class="line" href="../../d0/d08/realtime__stats_8cpp.html#aa54c915581fcc495489175a4386d59fd"> 118</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="../../d0/d08/realtime__stats_8cpp.html#aa54c915581fcc495489175a4386d59fd">test_function</a>(<span class="keyword">const</span> <span class="keywordtype">float</span> *test_data, <span class="keyword">const</span> <span class="keywordtype">int</span> number_of_samples) {</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keywordtype">float</span> mean = 0.f, variance = 0.f;</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> </div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> <a class="code hl_class" href="../../d7/d7c/classstatistics_1_1stats__computer1.html">stats_computer1&lt;float&gt;</a> stats01;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <a class="code hl_class" href="../../d8/dab/classstatistics_1_1stats__computer2.html">stats_computer2&lt;float&gt;</a> stats02;</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> </div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; number_of_samples; i++) {</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> stats01.<a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#aa13bf7c38de112f71921a5525d71a2f2">new_val</a>(test_data[i]);</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> stats02.<a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#ade6de704deea24fdc88077b3d9a0d534">new_val</a>(test_data[i]);</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> mean += test_data[i];</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> }</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> </div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> mean /= number_of_samples;</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> </div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; number_of_samples; i++) {</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keywordtype">float</span> temp = test_data[i] - mean;</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> variance += temp * temp;</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> }</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> variance /= number_of_samples;</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> </div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> std::cout &lt;&lt; <span class="stringliteral">&quot;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt; Test Function &gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&quot;</span> &lt;&lt; std::endl</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> &lt;&lt; <span class="stringliteral">&quot;Expected: Mean: &quot;</span> &lt;&lt; mean &lt;&lt; <span class="stringliteral">&quot;\t Variance: &quot;</span> &lt;&lt; variance</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> &lt;&lt; std::endl;</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> std::cout &lt;&lt; <span class="stringliteral">&quot;\tMethod 1:&quot;</span></div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> &lt;&lt; <span class="stringliteral">&quot;\tMean: &quot;</span> &lt;&lt; stats01.<a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a390697dcee210b91823ceff04b25081b">mean</a>()</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> &lt;&lt; <span class="stringliteral">&quot;\t Variance: &quot;</span> &lt;&lt; stats01.<a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a27f0a03e2fd2254f1c81fe668226bd92">variance</a>()</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> &lt;&lt; <span class="stringliteral">&quot;\t Std: &quot;</span> &lt;&lt; stats01.<a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#af57e942d49f4fd70f059f224b4ac07e1">std</a>() &lt;&lt; std::endl;</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> std::cout &lt;&lt; <span class="stringliteral">&quot;\tMethod 2:&quot;</span></div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> &lt;&lt; <span class="stringliteral">&quot;\tMean: &quot;</span> &lt;&lt; stats02.<a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#a8290966ad468f2a8c266d008bc60720e">mean</a>()</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> &lt;&lt; <span class="stringliteral">&quot;\t Variance: &quot;</span> &lt;&lt; stats02.<a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#af6198817084276113b3c064e87ce0555">variance</a>()</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> &lt;&lt; <span class="stringliteral">&quot;\t Std: &quot;</span> &lt;&lt; stats02.<a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#acf2e84df4fc386bb3295016ef8fd156e">std</a>() &lt;&lt; std::endl;</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> </div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> assert(std::abs(stats01.<a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a390697dcee210b91823ceff04b25081b">mean</a>() - mean) &lt; 0.01);</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> assert(std::abs(stats02.<a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#a8290966ad468f2a8c266d008bc60720e">mean</a>() - mean) &lt; 0.01);</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> assert(std::abs(stats02.<a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#af6198817084276113b3c064e87ce0555">variance</a>() - variance) &lt; 0.01);</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> </div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> std::cout &lt;&lt; <span class="stringliteral">&quot;(Tests passed)&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span>}</div>
</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span></div>
<div class="foldopen" id="foldopen00158" data-start="{" data-end="}">
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"><a class="line" href="../../d0/d08/realtime__stats_8cpp.html#a3c04138a5bfe5d72780bb7e82a18e627"> 158</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="../../dd/d1e/generate__parentheses_8cpp.html#gae66f6b31b5ad750f1fe042a706a4e3d4">main</a>(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv) {</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keyword">const</span> <span class="keywordtype">float</span> test_data1[] = {3, 4, 5, -1.4, -3.6, 1.9, 1.};</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <a class="code hl_function" href="../../d0/d08/realtime__stats_8cpp.html#aa54c915581fcc495489175a4386d59fd">test_function</a>(test_data1, <span class="keyword">sizeof</span>(test_data1) / <span class="keyword">sizeof</span>(test_data1[0]));</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> </div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> std::cout</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> &lt;&lt; <span class="stringliteral">&quot;Enter data. Any non-numeric data will terminate the data input.&quot;</span></div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> &lt;&lt; std::endl;</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <a class="code hl_class" href="../../d7/d7c/classstatistics_1_1stats__computer1.html">stats_computer1&lt;float&gt;</a> stats1;</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <a class="code hl_class" href="../../d8/dab/classstatistics_1_1stats__computer2.html">stats_computer2&lt;float&gt;</a> stats2;</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keywordflow">while</span> (1) {</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <span class="keywordtype">double</span> val;</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Enter number: &quot;</span>;</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> std::cin &gt;&gt; val;</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> </div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <span class="comment">// check for failure to read input. Happens for</span></div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="comment">// non-numeric data</span></div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordflow">if</span> (std::cin.fail())</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> </div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> stats1.<a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#aa13bf7c38de112f71921a5525d71a2f2">new_val</a>(val);</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> stats2.<a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#ade6de704deea24fdc88077b3d9a0d534">new_val</a>(val);</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> </div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> std::cout &lt;&lt; <span class="stringliteral">&quot;\tMethod 1:&quot;</span></div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> &lt;&lt; <span class="stringliteral">&quot;\tMean: &quot;</span> &lt;&lt; stats1.<a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a390697dcee210b91823ceff04b25081b">mean</a>()</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> &lt;&lt; <span class="stringliteral">&quot;\t Variance: &quot;</span> &lt;&lt; stats1.<a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a27f0a03e2fd2254f1c81fe668226bd92">variance</a>()</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> &lt;&lt; <span class="stringliteral">&quot;\t Std: &quot;</span> &lt;&lt; stats1.<a class="code hl_function" href="../../d7/d7c/classstatistics_1_1stats__computer1.html#af57e942d49f4fd70f059f224b4ac07e1">std</a>() &lt;&lt; std::endl;</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> std::cout &lt;&lt; <span class="stringliteral">&quot;\tMethod 2:&quot;</span></div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> &lt;&lt; <span class="stringliteral">&quot;\tMean: &quot;</span> &lt;&lt; stats2.<a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#a8290966ad468f2a8c266d008bc60720e">mean</a>()</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> &lt;&lt; <span class="stringliteral">&quot;\t Variance: &quot;</span> &lt;&lt; stats2.<a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#af6198817084276113b3c064e87ce0555">variance</a>()</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> &lt;&lt; <span class="stringliteral">&quot;\t Std: &quot;</span> &lt;&lt; stats2.<a class="code hl_function" href="../../d8/dab/classstatistics_1_1stats__computer2.html#acf2e84df4fc386bb3295016ef8fd156e">std</a>() &lt;&lt; std::endl;</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> }</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> </div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span>}</div>
</div>
<div class="ttc" id="aclassstatistics_1_1stats__computer1_html"><div class="ttname"><a href="../../d7/d7c/classstatistics_1_1stats__computer1.html">statistics::stats_computer1</a></div><div class="ttdef"><b>Definition</b> <a href="#l00027">realtime_stats.cpp:27</a></div></div>
<div class="ttc" id="aclassstatistics_1_1stats__computer1_html_a27f0a03e2fd2254f1c81fe668226bd92"><div class="ttname"><a href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a27f0a03e2fd2254f1c81fe668226bd92">statistics::stats_computer1::variance</a></div><div class="ttdeci">double variance() const</div><div class="ttdef"><b>Definition</b> <a href="#l00045">realtime_stats.cpp:45</a></div></div>
<div class="ttc" id="aclassstatistics_1_1stats__computer1_html_a350bf6c429691d3578c4dfc6679a0797"><div class="ttname"><a href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a350bf6c429691d3578c4dfc6679a0797">statistics::stats_computer1::operator&gt;&gt;</a></div><div class="ttdeci">friend std::istream &amp; operator&gt;&gt;(std::istream &amp;input, stats_computer1 &amp;stat)</div><div class="ttdef"><b>Definition</b> <a href="#l00053">realtime_stats.cpp:53</a></div></div>
<div class="ttc" id="aclassstatistics_1_1stats__computer1_html_a390697dcee210b91823ceff04b25081b"><div class="ttname"><a href="../../d7/d7c/classstatistics_1_1stats__computer1.html#a390697dcee210b91823ceff04b25081b">statistics::stats_computer1::mean</a></div><div class="ttdeci">double mean() const</div><div class="ttdef"><b>Definition</b> <a href="#l00042">realtime_stats.cpp:42</a></div></div>
<div class="ttc" id="aclassstatistics_1_1stats__computer1_html_aa13bf7c38de112f71921a5525d71a2f2"><div class="ttname"><a href="../../d7/d7c/classstatistics_1_1stats__computer1.html#aa13bf7c38de112f71921a5525d71a2f2">statistics::stats_computer1::new_val</a></div><div class="ttdeci">void new_val(T x)</div><div class="ttdef"><b>Definition</b> <a href="#l00032">realtime_stats.cpp:32</a></div></div>
<div class="ttc" id="aclassstatistics_1_1stats__computer1_html_af57e942d49f4fd70f059f224b4ac07e1"><div class="ttname"><a href="../../d7/d7c/classstatistics_1_1stats__computer1.html#af57e942d49f4fd70f059f224b4ac07e1">statistics::stats_computer1::std</a></div><div class="ttdeci">double std() const</div><div class="ttdef"><b>Definition</b> <a href="#l00048">realtime_stats.cpp:48</a></div></div>
<div class="ttc" id="aclassstatistics_1_1stats__computer2_html"><div class="ttname"><a href="../../d8/dab/classstatistics_1_1stats__computer2.html">statistics::stats_computer2</a></div><div class="ttdef"><b>Definition</b> <a href="#l00072">realtime_stats.cpp:72</a></div></div>
<div class="ttc" id="aclassstatistics_1_1stats__computer2_html_a8290966ad468f2a8c266d008bc60720e"><div class="ttname"><a href="../../d8/dab/classstatistics_1_1stats__computer2.html#a8290966ad468f2a8c266d008bc60720e">statistics::stats_computer2::mean</a></div><div class="ttdeci">double mean() const</div><div class="ttdef"><b>Definition</b> <a href="#l00086">realtime_stats.cpp:86</a></div></div>
<div class="ttc" id="aclassstatistics_1_1stats__computer2_html_ab444d485c9e7db35bdc2ff6b7775291a"><div class="ttname"><a href="../../d8/dab/classstatistics_1_1stats__computer2.html#ab444d485c9e7db35bdc2ff6b7775291a">statistics::stats_computer2::operator&gt;&gt;</a></div><div class="ttdeci">friend std::istream &amp; operator&gt;&gt;(std::istream &amp;input, stats_computer2 &amp;stat)</div><div class="ttdef"><b>Definition</b> <a href="#l00097">realtime_stats.cpp:97</a></div></div>
<div class="ttc" id="aclassstatistics_1_1stats__computer2_html_acf2e84df4fc386bb3295016ef8fd156e"><div class="ttname"><a href="../../d8/dab/classstatistics_1_1stats__computer2.html#acf2e84df4fc386bb3295016ef8fd156e">statistics::stats_computer2::std</a></div><div class="ttdeci">double std() const</div><div class="ttdef"><b>Definition</b> <a href="#l00092">realtime_stats.cpp:92</a></div></div>
<div class="ttc" id="aclassstatistics_1_1stats__computer2_html_ade6de704deea24fdc88077b3d9a0d534"><div class="ttname"><a href="../../d8/dab/classstatistics_1_1stats__computer2.html#ade6de704deea24fdc88077b3d9a0d534">statistics::stats_computer2::new_val</a></div><div class="ttdeci">void new_val(T x)</div><div class="ttdef"><b>Definition</b> <a href="#l00077">realtime_stats.cpp:77</a></div></div>
<div class="ttc" id="aclassstatistics_1_1stats__computer2_html_af6198817084276113b3c064e87ce0555"><div class="ttname"><a href="../../d8/dab/classstatistics_1_1stats__computer2.html#af6198817084276113b3c064e87ce0555">statistics::stats_computer2::variance</a></div><div class="ttdeci">double variance() const</div><div class="ttdef"><b>Definition</b> <a href="#l00089">realtime_stats.cpp:89</a></div></div>
<div class="ttc" id="agenerate__parentheses_8cpp_html_gae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="../../dd/d1e/generate__parentheses_8cpp.html#gae66f6b31b5ad750f1fe042a706a4e3d4">main</a></div><div class="ttdeci">int main()</div><div class="ttdoc">Main function.</div><div class="ttdef"><b>Definition</b> <a href="../../dd/d1e/generate__parentheses_8cpp_source.html#l00110">generate_parentheses.cpp:110</a></div></div>
<div class="ttc" id="anamespacestatistics_html"><div class="ttname"><a href="../../d2/dcf/namespacestatistics.html">statistics</a></div><div class="ttdoc">Statistical algorithms.</div></div>
<div class="ttc" id="arealtime__stats_8cpp_html_aa54c915581fcc495489175a4386d59fd"><div class="ttname"><a href="../../d0/d08/realtime__stats_8cpp.html#aa54c915581fcc495489175a4386d59fd">test_function</a></div><div class="ttdeci">void test_function(const float *test_data, const int number_of_samples)</div><div class="ttdef"><b>Definition</b> <a href="#l00118">realtime_stats.cpp:118</a></div></div>
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