Clipper
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log |I| scaling target More...
#include <resol_targetfn.h>
Public Member Functions | |
TargetFn_scaleLogI1I2 (const HKL_data< T1 > &hkl_data1_, const HKL_data< T2 > &hkl_data2_) | |
constructor: takes the datalist against which to calc target | |
Rderiv | rderiv (const HKL_info::HKL_reference_index &ih, const ftype &fh) const |
return the value and derivatives of the target function | |
FNtype | type () const |
the type of the function: optionally used to improve convergence |
log |I| scaling target
This class implements the target function for calculating the scale factor to scale the weighted log of one set of I's to another. The resulting scale is the square of the factor that scales the first set of data to match the second. The log scaling target is used in conjunction with the log-Gaussian basis functions for a fast and robust approximation to iso/aniso Gaussian scaling.