| Name | Description | Type | Package | Framework |
| AbstractFitMethod | Class | hep.aida.ref.fitter.fitMethod | FreeHep | |
| BinnedMaximumLikelihoodFitMethod | Class | hep.aida.ref.fitter.fitMethod | FreeHep | |
| ChiSquaredFitMethod | Class | hep.aida.ref.fitter.fitMethod | FreeHep | |
| CleverChiSquaredFitMethod | Class | hep.aida.ref.fitter.fitMethod | FreeHep | |
| FitData | Class | hep.aida.ref.fitter.fitData | FreeHep | |
| FitDataCreator | Class | hep.aida.ref.fitter.fitData | FreeHep | |
| FitDataIterator | Class | hep.aida.ref.fitter.fitData | FreeHep | |
| FitFactory | Class | hep.aida.ref.fitter | FreeHep | |
| FitParameterSettings | Class | hep.aida.ref.fitter | FreeHep | |
| FitResult | Class | hep.aida.ref.fitter | FreeHep | |
| Fitter | Class | hep.aida.ref.fitter | FreeHep | |
| LeastSquaresFitMethod | Class | hep.aida.ref.fitter.fitMethod | FreeHep | |
| RangeSetFilter | Class | hep.aida.ref.fitter.fitData | FreeHep | |
| UnbinnedMaximumLikelihoodFitMethod | Class | hep.aida.ref.fitter.fitMethod | FreeHep | |