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| double  | ROOT::Fit::FitUtil::EvaluateChi2 (const IModelFunction &func, const BinData &data, const double *x, unsigned int &nPoints, ::ROOT::EExecutionPolicy executionPolicy, unsigned nChunks=0) | 
|   | Chi2 Functions.  
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| double  | ROOT::Fit::FitUtil::EvaluateChi2Effective (const IModelFunction &func, const BinData &data, const double *x, unsigned int &nPoints) | 
|   | evaluate the effective Chi2 given a model function and the data at the point x.  
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| void  | ROOT::Fit::FitUtil::EvaluateChi2Gradient (const IModelFunction &func, const BinData &data, const double *x, double *grad, unsigned int &nPoints, ::ROOT::EExecutionPolicy executionPolicy=::ROOT::EExecutionPolicy::kSequential, unsigned nChunks=0) | 
|   | evaluate the Chi2 gradient given a model function and the data at the point x.  
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| double  | ROOT::Fit::FitUtil::EvaluateChi2Residual (const IModelFunction &func, const BinData &data, const double *x, unsigned int ipoint, double *g=0) | 
|   | evaluate the residual contribution to the Chi2 given a model function and the BinPoint data and if the pointer g is not null evaluate also the gradient of the residual.  
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| double  | ROOT::Fit::FitUtil::EvaluateLogL (const IModelFunction &func, const UnBinData &data, const double *p, int iWeight, bool extended, unsigned int &nPoints, ::ROOT::EExecutionPolicy executionPolicy, unsigned nChunks=0) | 
|   | evaluate the LogL given a model function and the data at the point x.  
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| void  | ROOT::Fit::FitUtil::EvaluateLogLGradient (const IModelFunction &func, const UnBinData &data, const double *x, double *grad, unsigned int &nPoints, ::ROOT::EExecutionPolicy executionPolicy=::ROOT::EExecutionPolicy::kSequential, unsigned nChunks=0) | 
|   | evaluate the LogL gradient given a model function and the data at the point x.  
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| double  | ROOT::Fit::FitUtil::EvaluatePdf (const IModelFunction &func, const UnBinData &data, const double *x, unsigned int ipoint, double *g=0) | 
|   | evaluate the pdf contribution to the LogL given a model function and the BinPoint data.  
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| double  | ROOT::Fit::FitUtil::EvaluatePoissonBinPdf (const IModelFunction &func, const BinData &data, const double *x, unsigned int ipoint, double *g=0) | 
|   | evaluate the pdf contribution to the Poisson LogL given a model function and the BinPoint data.  
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| double  | ROOT::Fit::FitUtil::EvaluatePoissonLogL (const IModelFunction &func, const BinData &data, const double *x, int iWeight, bool extended, unsigned int &nPoints, ::ROOT::EExecutionPolicy executionPolicy, unsigned nChunks=0) | 
|   | evaluate the Poisson LogL given a model function and the data at the point x.  
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| void  | ROOT::Fit::FitUtil::EvaluatePoissonLogLGradient (const IModelFunction &func, const BinData &data, const double *x, double *grad, unsigned int &nPoints, ::ROOT::EExecutionPolicy executionPolicy=::ROOT::EExecutionPolicy::kSequential, unsigned nChunks=0) | 
|   | evaluate the Poisson LogL given a model function and the data at the point x.  
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| unsigned  | ROOT::Fit::FitUtil::setAutomaticChunking (unsigned nEvents) | 
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