FitterEngineConfig

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Description

Config options

FitterEngine Options	Type	Description	Default
likelihoodInterfaceConfig	json	Configure the likelihood calculation.	required
minimizerConfig	json	MinimizerInterface config	required
parameterScannerConfig	json	Scan parameters config
scanConfig	json	Deprecated. See parameterScannerConfig.
propagatorConfig	json	Deprecated. See likelihoodInterfaceConfig/propagatorConfig
mcmcConfig	json	Deprecated. See minimizerConfig
engineType	string	Deprecated. See minimizerConfig/type
enablePreFitScan	bool	Run fit parameter scan right before the minimization	false
enablePostFitScan	bool	Run fit parameter scan right after the minimization	false
enablePreFitToPostFitLineScan	bool	Run scan between the prefit and postfit parameters	false
generateSamplePlots	bool	Draw sample histograms according to the PlotGenerator config	true
allParamVariations	list(double)	List of points to perform individual parameter variation
enablePca / runPcaCheck / fixGhostFitParameters	bool	Dangerous: Fix parameter if the effect on stat LHH is lower than pcaDeltaChi2Threshold	false
pcaThreshold	double	LLH threshold for PCA	1E-6
fixGhostEigenParametersAfterFirstRejected	bool	Fix all next parameters once PCA has been triggered (dev)	false
throwMcBeforeFit	bool	Push MC parameter away from their prior before fitting	false
throwMcBeforeFitGain	int	Scale throws for MC parameters	1
customFitParThrow*	list	Use the custom thrown values for parameters (dev)
scaleParStepWithChi2Response	bool	Use LLH profile to scale parameter step size (dev)	false
parStepGain	bool	Boost step value with scaleParStepWithChi2Response (dev)	0.1
savePostfitEventTrees	bool	Save event tree after the fit.	false

JSON sub-structures

customFitParThrow options

Options	Type	Description	Default
parIndex	int	Parameter index to move
nbSigmaAway	int	Custom throw value (in unit of sigma)