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LSST Data Management Base Package
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Public Member Functions | |
MinimizeChi2 (evalChi2Visitor< PixelT > &chi2Visitor, afw::math::Kernel *kernel, afw::math::SpatialCellSet const &psfCells, int nStarPerCell, int nComponents, int nSpatialParams) | |
double | Up () const |
Error definition of the function. | |
double | operator() (const std::vector< double > &coeffs) const |
void | setErrorDef (double def) |
Definition at line 544 of file SpatialModelPsf.cc.
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inlineexplicit |
Definition at line 546 of file SpatialModelPsf.cc.
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inline |
Definition at line 566 of file SpatialModelPsf.cc.
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inline |
Definition at line 574 of file SpatialModelPsf.cc.
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inline |
Error definition of the function.
MINUIT defines Parameter errors as the change in Parameter Value required to change the function Value by up. Normally, for chisquared fits it is 1, and for negative log likelihood, its Value is 0.5. If the user wants instead the 2-sigma errors for chisquared fits, it becomes 4,
Definition at line 563 of file SpatialModelPsf.cc.