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https://github.com/slsdetectorgroup/slsDetectorPackage.git
synced 2025-06-11 04:17:15 +02:00
added patternGenerator and slsDteectorCalibration directory in order to compile the ctbGui
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55
slsDetectorCalibration/RunningStat.h
Executable file
55
slsDetectorCalibration/RunningStat.h
Executable file
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class RunningStat
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{
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public:
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RunningStat() : m_n(0) {}
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void Clear()
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{
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m_n = 0;
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}
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void Push(double x)
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{
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m_n++;
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// See Knuth TAOCP vol 2, 3rd edition, page 232
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if (m_n == 1)
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{
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m_oldM = m_newM = x;
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m_oldS = 0.0;
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}
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else
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{
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m_newM = m_oldM + (x - m_oldM)/m_n;
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m_newS = m_oldS + (x - m_oldM)*(x - m_newM);
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// set up for next iteration
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m_oldM = m_newM;
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m_oldS = m_newS;
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}
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}
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int NumDataValues() const
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{
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return m_n;
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}
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double Mean() const
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{
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return (m_n > 0) ? m_newM : 0.0;
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}
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double Variance() const
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{
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return ( (m_n > 1) ? m_newS/(m_n - 1) : 0.0 );
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}
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double StandardDeviation() const
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{
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return sqrt( Variance() );
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}
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private:
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int m_n;
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double m_oldM, m_newM, m_oldS, m_newS;
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};
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