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PixInitFunc_8cc_source.html
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#include "PixInitFunc.hh"</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="preprocessor">#include "TROOT.h"</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include "TMath.h"</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include "TCanvas.h"</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include <iostream></span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include <iomanip></span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> ClassImp(<a class="code" href="classPixInitFunc.html">PixInitFunc</a>)</div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> using namespace std;</div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> namespace {</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <span class="comment">// ----------------------------------------------------------------------</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  <span class="comment">// par[0]: "step" </span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <span class="comment">// par[1]: "slope" the smaller the steeper</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="comment">// par[2]: "floor" 1 -> floor is at 0</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <span class="comment">// par[3]: "plateau" y -> plateau is at 2*y </span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keywordtype">double</span> PIF_err(<span class="keywordtype">double</span> *x, <span class="keywordtype">double</span> *par) {</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keywordflow">return</span> par[3]*(TMath::Erf((x[0]-par[0])/par[1])+par[2]); </div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  } </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordtype">double</span> PIF_weibullCdf(<span class="keywordtype">double</span> *x, <span class="keywordtype">double</span> *par) {</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keywordflow">if</span> (par[1] < 0) <span class="keywordflow">return</span> 0.;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keywordflow">if</span> (par[2] < 0) <span class="keywordflow">return</span> 0.;</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keywordflow">return</span> par[0]*(1 - TMath::Exp(-TMath::Power(x[0]/par[1], par[2]))); </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  } </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> xCut = TMath::Pi()/2. - 0.0005;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> tanXCut = TMath::Tan(xCut);</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordtype">double</span> PIF_gpTanPol( Double_t *x, Double_t *par) {</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">if</span> (par[0]*x[0] - par[4] > xCut) <span class="keywordflow">return</span> tanXCut + (x[0] - (xCut + par[4])/par[0])* 1e8;</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordtype">double</span> result = TMath::Tan(par[0]*x[0] - par[4]) + par[1]*x[0]*x[0]*x[0] + par[5]*x[0]*x[0] + par[2]*x[0] + par[3];</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="comment">// cout << result << endl;</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">return</span> result; </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  }</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">double</span> PIF_gpTanH( Double_t *x, Double_t *par) {</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">return</span> par[3] + par[2] * TMath::TanH(par[0]*x[0] - par[1]);</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  }</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> }</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment">// ----------------------------------------------------------------------</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> PixInitFunc::PixInitFunc() {</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> }</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment">// ---------------------------------------------------------------------- </span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> PixInitFunc::~PixInitFunc() {</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> }</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment">// ----------------------------------------------------------------------</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="keywordtype">void</span> PixInitFunc::resetLimits() {</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < 20; ++i) {</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  fLimit[i] = <span class="keyword">false</span>; </div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  fLimitLo[i] = 0.; </div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  fLimitHi[i] = 0.; </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  }</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> }</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment">// ----------------------------------------------------------------------</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="keywordtype">void</span> PixInitFunc::limitPar(<span class="keywordtype">int</span> ipar, <span class="keywordtype">double</span> lo, <span class="keywordtype">double</span> hi) {</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  fLimit[ipar] = <span class="keyword">true</span>; </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  fLimitLo[ipar] = lo; </div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  fLimitHi[ipar] = hi; </div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> }</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment">// ----------------------------------------------------------------------</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> TF1* PixInitFunc::gpTanPol(TH1 *h) {</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">double</span> lo = h->GetBinLowEdge(1); </div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">double</span> hi = h->FindLastBinAbove(0.9*h->GetMaximum());</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  hi = h->GetBinLowEdge(h->GetNbinsX()+1); </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="comment">// -- setup function</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  TF1* f = (TF1*)gROOT->FindObject(<span class="stringliteral">"PIF_gpTanPol"</span>);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> (0 == f) {</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  f = <span class="keyword">new</span> TF1(<span class="stringliteral">"PIF_gpTanPol"</span>, PIF_gpTanPol, lo, hi, 6);</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  f->SetNpx(1000);</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// f->SetParNames("norm", "scale", "shape"); </span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  f->SetRange(lo, hi); </div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  f->ReleaseParameter(0); </div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  f->ReleaseParameter(1); </div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  f->ReleaseParameter(2); </div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  f->ReleaseParameter(3); </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  f->ReleaseParameter(4); </div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  f->ReleaseParameter(5); </div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  f->SetRange(lo, hi); </div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  }</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordtype">int</span> ilo = h->FindFirstBinAbove(0);</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordtype">double</span> xlo = h->GetBinCenter(ilo); </div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordtype">double</span> ylo = h->GetBinContent(ilo);</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordtype">int</span> iup = h->FindFirstBinAbove(0.8*h->GetMaximum());</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordtype">double</span> xup = h->GetBinCenter(iup); </div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordtype">double</span> yup = h->GetBinContent(iup);</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordtype">double</span> slope(0.5);</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">if</span> (ilo != iup && (TMath::Abs(xup - xlo) > 1e-5)) slope = (yup-ylo)/(xup-xlo); </div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  </div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  f->SetParameter(2, slope);</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  f->SetParameter(3, yup - slope*xup);</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordtype">double</span> par0 = (TMath::Pi()/2. - 1.4) / h->GetBinCenter(h->FindLastBinAbove(0.));</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  f->SetParameter(0, par0);</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  f->FixParameter(1, 0.);</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  f->SetParameter(4, -1.4);</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">if</span> (xup > 0.) f->SetParameter(5, (yup - (TMath::Tan(f->GetParameter(0)*xup - f->GetParameter(4))</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  + f->GetParameter(1)*xup*xup*xup + slope*xup + f->GetParameter(3)))/(xup*xup));</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">else</span> f->SetParameter(5, 0.);</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  </div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment">// cout << f->GetParameter(0) << endl;</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment">// cout << f->GetParameter(1) << endl;</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment">// cout << f->GetParameter(2) << endl;</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment">// cout << f->GetParameter(3) << endl;</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment">// cout << f->GetParameter(4) << endl;</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment">// cout << f->GetParameter(5) << endl;</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">return</span> f;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> }</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment">// ----------------------------------------------------------------------</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> TF1* PixInitFunc::gpTanH(TH1 *h) {</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordtype">double</span> lo = 0.; <span class="comment">//h->GetBinLowEdge(1); </span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordtype">double</span> hi = 1700.; <span class="comment">//h->FindLastBinAbove(0.9*h->GetMaximum());</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">// -- setup function</span></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  TF1* f = (TF1*)gROOT->FindObject(<span class="stringliteral">"PIF_gpTanH"</span>);</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">if</span> (0 == f) {</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  f = <span class="keyword">new</span> TF1(<span class="stringliteral">"PIF_gpTanH"</span>, PIF_gpTanH, lo, hi, 4);</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  f->SetNpx(1000);</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  f->SetRange(lo, hi); </div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  f->ReleaseParameter(0); </div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  f->ReleaseParameter(1); </div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  f->ReleaseParameter(2); </div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  f->ReleaseParameter(3); </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  f->SetRange(lo, hi); </div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  }</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  f->SetParameter(0, 1.4e-3);</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  f->SetParLimits(0, 1.e-3, 2.e-3);</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  f->SetParameter(1, 0.8);</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  f->SetParLimits(1, 0., 20.);</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordtype">double</span> middle = h->GetMaximum() - h->GetMinimum();</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordtype">double</span> step = h->GetMaximum() - middle; </div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  f->SetParameter(2, middle);</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  f->SetParLimits(2, 0., 2*middle);</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  f->SetParameter(3, step);</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">return</span> f;</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> }</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> </div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment">// ----------------------------------------------------------------------</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> TF1* PixInitFunc::weibullCdf(TH1 *h) {</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  fDoNotFit = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordtype">double</span> hi = h->FindLastBinAbove(0.9*h->GetMaximum());</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordtype">double</span> lo = h->GetBinLowEdge(1); </div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="comment">// require 3 consecutive bins at zero</span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 3; i < h->GetNbinsX(); ++i) {</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">if</span> (h->GetBinContent(i-2) < 1 && h->GetBinContent(i-1) < 1 && h->GetBinContent(i) < 1) {</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  lo = h->GetBinLowEdge(i-2);</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  }</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  }</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="comment">// -- setup function</span></div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  TF1* f = (TF1*)gROOT->FindObject(<span class="stringliteral">"PIF_weibullCdf"</span>);</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">if</span> (0 == f) {</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  f = <span class="keyword">new</span> TF1(<span class="stringliteral">"PIF_weibullCdf"</span>, PIF_weibullCdf, h->GetBinLowEdge(1), h->GetBinLowEdge(h->GetNbinsX()+1), 3);</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  f->SetParNames(<span class="stringliteral">"norm"</span>, <span class="stringliteral">"scale"</span>, <span class="stringliteral">"shape"</span>); </div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  f->SetNpx(1000);</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  f->SetRange(lo, hi); </div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  f->ReleaseParameter(0); </div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  f->ReleaseParameter(1); </div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  f->ReleaseParameter(2); </div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  f->ReleaseParameter(3); </div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  f->SetRange(lo, hi); </div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  }</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  </div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  f->SetParameter(0, h->GetMaximum()); </div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  f->SetParameter(1, h->GetBinCenter(h->FindFirstBinAbove(0.5*h->GetMaximum()))); </div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  f->SetParameter(2, 1.5); </div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  </div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">return</span> f; </div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> }</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment">// ----------------------------------------------------------------------</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> TF1* PixInitFunc::errScurve(TH1 *h) {</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> </div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  fDoNotFit = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="comment">// -- determine step function and start of function range (to exclude spurious low-threshold readouts)</span></div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordtype">int</span> STARTBIN(2); </div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordtype">int</span> ibin(-1), jbin(-1);</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordtype">double</span> hmax(h->GetMaximum()); </div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = STARTBIN; i <= h->GetNbinsX(); ++i) {</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">if</span> (h->GetBinContent(i) > 0) {</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  ibin = i; <span class="comment">// first bin above zero</span></div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  }</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  }</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="comment">// require 2 consecutive bins on plateau</span></div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = STARTBIN; i < h->GetNbinsX(); ++i) {</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">if</span> (h->GetBinContent(i) > 0.9*hmax && h->GetBinContent(i+1) > 0.9*hmax) {</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  jbin = i; <span class="comment">// first bin "really" on plateau</span></div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  }</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  }</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordtype">int</span> plateauWidth = h->FindLastBinAbove(0.9*hmax) - jbin;</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordtype">double</span> hi = h->GetBinLowEdge(jbin + 0.7*plateauWidth);</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordtype">double</span> lo = h->GetBinLowEdge(1); </div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="comment">// require 3 consecutive bins at zero</span></div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordtype">int</span> foundLo(-1);</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 3; i < h->GetNbinsX(); ++i) {</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordflow">if</span> (h->GetBinLowEdge(i-2) > hi) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">if</span> (h->GetBinContent(i-2) < 1 && h->GetBinContent(i-1) < 1 && h->GetBinContent(i) < 1) {</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  lo = h->GetBinLowEdge(i-2);</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  foundLo = i-2;</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  }</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  }</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">if</span> (foundLo > -1) {</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  lo = lo + 0.6*(h->GetBinLowEdge(ibin) - lo);</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  }</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="comment">// -- setup function</span></div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  TF1* f = (TF1*)gROOT->FindObject(<span class="stringliteral">"PIF_err"</span>);</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">if</span> (0 == f) {</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  f = <span class="keyword">new</span> TF1(<span class="stringliteral">"PIF_err"</span>, PIF_err, h->GetBinLowEdge(1), h->GetBinLowEdge(h->GetNbinsX()+1), 4);</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  f->SetParNames(<span class="stringliteral">"step"</span>, <span class="stringliteral">"slope"</span>, <span class="stringliteral">"floor"</span>, <span class="stringliteral">"plateau"</span>); </div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  f->SetNpx(1000);</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  f->SetRange(lo, hi); </div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  f->ReleaseParameter(0); </div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  f->ReleaseParameter(1); </div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  f->ReleaseParameter(2); </div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  f->ReleaseParameter(3); </div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  f->SetRange(lo, hi); </div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  }</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  </div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  f->SetParameter(0, h->GetBinCenter(0.5*(ibin+jbin))); </div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  f->SetParameter(1, 2.0/(h->GetBinLowEdge(jbin) - h->GetBinLowEdge(ibin))); </div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="comment">// cout << "init parameters 0: " << f->GetParameter(0) << " 1: " << f->GetParameter(1) </span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="comment">// << " ibin: " << ibin << " jbin: " << jbin</span></div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="comment">// << " lo: " << lo << " hi: " << hi </span></div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="comment">// << " foundLo: " << foundLo</span></div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="comment">// << endl;</span></div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keywordflow">if</span> (jbin == ibin) {</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="comment">// cout << "XXXXXXXXXXX PixInitFunc: STEP FUNCTION " << h->GetTitle() << " ibin = " << ibin << " jbin = " << jbin << endl;</span></div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  f->FixParameter(0, h->GetBinCenter(jbin)); </div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  f->FixParameter(1, 1.e2); </div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  fDoNotFit = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  }</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  f->FixParameter(2, 1.); </div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  f->FixParameter(3, 0.5*h->GetMaximum()); </div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">return</span> f; </div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> }</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> </div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="comment">// ----------------------------------------------------------------------</span></div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> TF1* PixInitFunc::xrayScan(TH1 *h) {</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span> </div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="comment">// -- determine step function and start of function range</span></div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keywordtype">double</span> lo = h->GetBinCenter(h->FindFirstBinAbove(0.)); </div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordtype">double</span> hi = h->GetBinCenter(h->FindLastBinAbove(0.9*h->GetMaximum()));</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keywordtype">double</span> hmax = h->GetMaximum(); </div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> </div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="keywordtype">double</span> pol0(0.); </div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordtype">double</span> threshold(-1.), plateau(-1), width(-1.); </div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = h->FindBin(lo); i < h->GetNbinsX(); i += 5) {</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordflow">if</span> (h->GetBinCenter(i) > hi - 10.) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  h->Fit(<span class="stringliteral">"pol0"</span>, <span class="stringliteral">"qr"</span>, <span class="stringliteral">""</span>, h->GetBinCenter(i), hi); </div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  pol0 = h->GetFunction(<span class="stringliteral">"pol0"</span>)->GetParameter(0); </div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="comment">// cout << h->GetBinCenter(i) << " pol0 = " << pol0 << endl;</span></div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordtype">double</span> a = pol0/hmax;</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keywordflow">if</span> (a > 0.5 && threshold < 0) {</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  threshold = h->GetBinCenter(i);</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  }</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  plateau = pol0;</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  }</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span> </div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  width = 0.5*(threshold - lo);</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="comment">// cout << "lo = " << lo << endl;</span></div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="comment">// cout << "hi = " << hi << endl;</span></div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="comment">// cout << "threshold = " << threshold << endl;</span></div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="comment">// cout << "plateau = " << plateau << endl;</span></div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> </div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="comment">// -- setup function</span></div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  TF1* f = (TF1*)gROOT->FindObject(<span class="stringliteral">"PIF_err"</span>);</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordflow">if</span> (0 == f) {</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  f = <span class="keyword">new</span> TF1(<span class="stringliteral">"PIF_err"</span>, PIF_err, h->GetBinLowEdge(1), h->GetBinLowEdge(h->GetNbinsX()+1), 4);</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  f->SetParNames(<span class="stringliteral">"step"</span>, <span class="stringliteral">"slope"</span>, <span class="stringliteral">"floor"</span>, <span class="stringliteral">"plateau"</span>); </div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  f->SetNpx(1000);</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  f->SetRange(lo, hi); </div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  f->ReleaseParameter(0); </div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  f->ReleaseParameter(1); </div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  f->ReleaseParameter(2); </div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  f->ReleaseParameter(3); </div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  f->SetRange(lo, hi); </div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  }</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  </div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  f->SetParameter(0, threshold); </div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  f->SetParameter(1, width); </div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  f->SetParameter(2, 1.); </div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  f->SetParameter(3, 0.5*plateau);</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">return</span> f; </div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span> }</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> </div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span> </div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> </div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> </div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span> <span class="comment">// ----------------------------------------------------------------------</span></div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span> <span class="keywordtype">void</span> PixInitFunc::initExpo(<span class="keywordtype">double</span> &p0, <span class="keywordtype">double</span> &p1, TH1 *h) {</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span> </div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="keywordtype">int</span> EDG(4), NB(EDG+1); </div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordtype">int</span> lbin(1), hbin(h->GetNbinsX()+1); </div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordflow">if</span> (fLo < fHi) {</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  lbin = h->FindBin(fLo); </div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  hbin = h->FindBin(fHi); </div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  }</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  </div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="keywordtype">double</span> dx = h->GetBinLowEdge(hbin) - h->GetBinLowEdge(lbin);</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="keywordtype">double</span> ylo = h->Integral(lbin, lbin+EDG)/NB; </div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keywordtype">double</span> yhi = h->Integral(hbin-EDG, hbin)/NB;</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span> </div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keywordflow">if</span> (ylo > 0 && yhi > 0) {</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  p1 = (TMath::Log(yhi) - TMath::Log(ylo))/dx; </div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  p0 = ylo/TMath::Exp(p1*fLo); </div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordflow">if</span> (yhi > ylo) {</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  p1 = 1.;</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  p1 = -1.;</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  }</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  p0 = 50.;</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  }</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> </div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> <span class="comment">// cout << "fLo: " << fLo << " fHi: " << fHi << endl;</span></div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <span class="comment">// cout << "ylo: " << ylo << " yhi: " << yhi << endl;</span></div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span> <span class="comment">// cout << "p0: " << p0 << " p1: " << p1 << endl;</span></div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> </div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> }</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> </div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="comment">// ----------------------------------------------------------------------</span></div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="keywordtype">void</span> PixInitFunc::initPol1(<span class="keywordtype">double</span> &p0, <span class="keywordtype">double</span> &p1, TH1 *h) {</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> </div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keywordtype">int</span> EDG(4), NB(EDG+1); </div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keywordtype">int</span> lbin(1), hbin(h->GetNbinsX()+1); </div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="keywordflow">if</span> (fLo < fHi) {</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  lbin = h->FindBin(fLo); </div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  hbin = h->FindBin(fHi); </div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  }</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  </div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keywordtype">double</span> dx = h->GetBinLowEdge(hbin) - h->GetBinLowEdge(lbin);</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keywordtype">double</span> ylo = h->Integral(lbin, lbin+EDG)/NB; </div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordtype">double</span> yhi = h->Integral(hbin-EDG, hbin)/NB;</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span> </div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="comment">// cout << "ylo: " << ylo << " yhi: " << yhi << endl;</span></div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span> </div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  p1 = (yhi-ylo)/dx;</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  p0 = ylo - p1*fLo;</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span> }</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> </div>
<div class="ttc" id="classPixInitFunc_html"><div class="ttname"><a href="classPixInitFunc.html">PixInitFunc</a></div><div class="ttdef"><b>Definition:</b> <a href="PixInitFunc_8hh_source.html#l00014">PixInitFunc.hh:14</a></div></div>
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