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<h1>Erfc.h</h1><a href="Erfc_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: c++ -*- */</span>
<a name="l00002"></a>00002
<a name="l00011"></a>00011 <span class="preprocessor">#ifndef _Erfc_H_</span>
<a name="l00012"></a>00012 <span class="preprocessor"></span><span class="preprocessor">#define _Erfc_H_</span>
<a name="l00013"></a>00013 <span class="preprocessor"></span>
<a name="l00014"></a>00014 <span class="preprocessor">#include "<a class="code" href="FunctionBase_8h.html" title="hippodraw::FunctionBase class interface">FunctionBase.h</a>"</span>
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="keyword">namespace </span>hippodraw {
<a name="l00017"></a>00017
<a name="l00044"></a><a class="code" href="classhippodraw_1_1Erfc.html">00044</a> <span class="keyword">class </span><a class="code" href="libhippo_8h.html#a480024fd54849c743866874550153711">MDL_HIPPOPLOT_API</a> <a class="code" href="classhippodraw_1_1Erfc.html" title="A function that can be used with a fitter.">Erfc</a> : <span class="keyword">public</span> <a class="code" href="classhippodraw_1_1FunctionBase.html" title="A function that can be added to a DataRep and used in a fitter.">FunctionBase</a>
<a name="l00045"></a>00045 {
<a name="l00046"></a>00046 <span class="keyword">private</span>:
<a name="l00047"></a><a class="code" href="classhippodraw_1_1Erfc.html#a06fc87d81c62e9abb8790b6e5713c55bad3071ccb5d54bbadcd61b726d215b10f">00047</a> <span class="keyword">enum</span>{MEAN,SIGMA,NORM};
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keyword">protected</span>:
<a name="l00051"></a>00051 <span class="keyword">virtual</span> <span class="keywordtype">void</span> initialize();
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <span class="keyword">public</span>:
<a name="l00055"></a>00055 <a class="code" href="classhippodraw_1_1Erfc.html" title="A function that can be used with a fitter.">Erfc</a> ();
<a name="l00056"></a>00056
<a name="l00058"></a>00058 <a class="code" href="classhippodraw_1_1Erfc.html" title="A function that can be used with a fitter.">Erfc</a> ( <span class="keywordtype">double</span> mean, <span class="keywordtype">double</span> sigma, <span class="keywordtype">double</span> <a class="code" href="namespacehippodraw_1_1Numeric.html#a2fc63b8199da4a6f45b4a9590fbab38f" title="Computes the two norm of the vector.">norm</a> );
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="keyword">virtual</span> <a class="code" href="classhippodraw_1_1FunctionBase.html" title="A function that can be added to a DataRep and used in a fitter.">FunctionBase</a> * <a class="code" href="namespacenum__util.html#a8d145d73a173083711a3829a2bc75f5c">clone</a> () <span class="keyword">const</span>;
<a name="l00061"></a>00061
<a name="l00063"></a>00063 <span class="keyword">virtual</span> <span class="keywordtype">double</span> operator () ( <span class="keywordtype">double</span> x ) <span class="keyword">const</span>;
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="keyword">virtual</span> <span class="keywordtype">void</span> initialParameters ( <span class="keyword">const</span> <a class="code" href="classhippodraw_1_1FunctionHelper.html" title="An abstract base class to help FunctionBase objects perform some operations.">FunctionHelper</a> * helper );
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <span class="comment">//Help functions:</span>
<a name="l00068"></a>00068 <span class="keywordtype">double</span> calcErfc(<span class="keywordtype">double</span> x) <span class="keyword">const</span>;
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <span class="keyword">protected</span>:
<a name="l00071"></a>00071 <span class="keyword">virtual</span> <span class="keywordtype">double</span> derivByParm ( <span class="keywordtype">int</span> i, <span class="keywordtype">double</span> x ) <span class="keyword">const</span>;
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="keywordtype">double</span> derivByRed ( <span class="keywordtype">double</span> value) <span class="keyword">const</span>;
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="keyword">private</span>:
<a name="l00077"></a><a class="code" href="classhippodraw_1_1Erfc.html#a5610f1b8c5396e3b3a5216896d6a28e4">00077</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> calcRed(<span class="keywordtype">double</span> value)<span class="keyword"> const </span>
<a name="l00078"></a>00078 <span class="keyword"> </span>{
<a name="l00079"></a>00079 <span class="keywordflow">if</span>(m_parms[SIGMA] == 0.0) {
<a name="l00080"></a>00080 <a class="code" href="classhippodraw_1_1Erfc.html" title="A function that can be used with a fitter.">Erfc</a> * p = const_cast < <a class="code" href="classhippodraw_1_1Erfc.html" title="A function that can be used with a fitter.">Erfc</a> * > ( this );
<a name="l00081"></a>00081 p-><a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[SIGMA] = 0.0001; <span class="comment">//dummy lower value</span>
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <span class="keywordflow">return</span> (value - m_parms[MEAN])/m_parms[SIGMA];
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086
<a name="l00087"></a>00087
<a name="l00088"></a>00088
<a name="l00089"></a>00089 };
<a name="l00090"></a>00090
<a name="l00091"></a>00091 } <span class="comment">// namespace hippodraw</span>
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="preprocessor">#endif// _Erfc_H_</span>
</pre></div></div>
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