Impala Documentation

template<class HistT>

double Impala::Core::Histogram::FitWeibullMarginalOld< HistT >::BetaEst	(	double	gamma,
		double	xgm
	)			const `[inline, private]`

Definition at line 155 of file FitWeibullMarginalOld.h.

References Impala::Core::Histogram::FitWeibullMarginalOld< HistT >::mBins, Impala::Core::Histogram::FitWeibullMarginalOld< HistT >::mDx, Impala::Core::Histogram::FitWeibullMarginalOld< HistT >::mHist, Impala::Core::Histogram::FitWeibullMarginalOld< HistT >::mNorm, and Impala::Core::Histogram::FitWeibullMarginalOld< HistT >::mPrecision.

Referenced by Impala::Core::Histogram::FitWeibullMarginalOld< HistT >::DoFit(), and Impala::Core::Histogram::FitWeibullMarginalOld< HistT >::GFunct().

00156     { 
00157         double sum(0);
00158         double ddx = mDx/xgm; // x[i]/xgm
00159         double x = 0.5*ddx;
00160 
00161         for (int i=0; i<mBins; i++, x += ddx)
00162             if (mHist[i]>mPrecision)
00163                 sum += pow(x, gamma)*mHist[i];
00164 
00165         return xgm*pow(sum/mNorm, 1./gamma);
00166     }