ROOT 6.10/09 Reference Guide |

Fit Method Classes

Classes describing Fit Method functions.

## Classes | |

class | ROOT::Math::BasicFitMethodFunction< FunctionType > |

FitMethodFunction class Interface for objective functions (like chi2 and likelihood used in the fit) In addition to normal function interface provide interface for calculating each data contrinution to the function which is required by some algorithm (like Fumili) More... | |

class | ROOT::Fit::Chi2FCN< FunType > |

Chi2FCN class for binnned fits using the least square methods. More... | |

class | ROOT::Fit::LogLikelihoodFCN< FunType > |

LogLikelihoodFCN class for likelihood fits. More... | |

class | ROOT::Fit::PoissonLikelihoodFCN< FunType > |

class evaluating the log likelihood for binned Poisson likelihood fits it is template to distinguish gradient and non-gradient case More... | |