Opened 6 months ago

Last modified 6 months ago

#940 assigned enhancement

fit_one_of function to avoid redundant parameters

Reported by: richardh Owned by: pkienzle
Priority: minor Milestone: sasmodels WishList
Component: sasmodels Keywords:
Cc: Work Package: SasView Bug Fixing

Description

Could put some sort of function in model.py to identify which parameters should not all fit simultaneously, then flag to user as an issue.

e.g. for a simple particle:

fit_one_of('scale', 'sld', 'sld_solvent')

e.g. for a core-shell particle, think might need:

fit_one_of('scale', 'sld_core'.AND.'sld_shell'.AND.'sld_solvent')

There may be a better way to express this, or a clever way to to this automatically, certainly from the derivatives, or the correlation matrix. Also does not work always, e.g. if sld_shell is fixed at same as sld_solvent then the core/shell system beomes a simple particle, but could add extra logic for this???

Change History (1)

comment:1 Changed 6 months ago by richardh

  • Owner set to pkienzle
  • Status changed from new to assigned
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