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Clipper
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#include <resol_targetfn.h>
Public Member Functions | |
| TargetFn_sigmaa (const HKL_data< T > &eo, const HKL_data< T > &ec) | |
| constructor: takes the datalist against which to calc target | |
| Rderiv | rderiv (const HKL_info::HKL_reference_index &ih, const ftype &sigmaa0) const |
| return the value and derivatives of the target function | |
Public Member Functions inherited from clipper::TargetFn_base | |
| virtual FNtype | type () const |
| the type of the function: optionally used to improve convergence | |
| virtual | ~TargetFn_base () |
| destructor | |
| void | debug (const HKL_info &hkl_info) const |
| test that the residuals, gradients, and curvatures are consistent | |
Static Public Member Functions | |
| static ftype | sigmaa (const ftype &sigm) |
| convert function to sigmaa | |
Additional Inherited Members | |
Public Types inherited from clipper::TargetFn_base | |
| enum | FNtype { GENERAL , QUADRATIC } |
| enumeration of function types: optionally used to improve convergence | |
This class implements the target function for calculating sigma_a. Required is a datalist containing Eo, Ec.
This version simplifies terms in |Eo|^2 and |Ec|^2 which should average out to 1 if the normalisation scheme is consistent with the sigmaa calc.
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virtual |
return the value and derivatives of the target function
Implements clipper::TargetFn_base.