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Core CIF Dictionary version 2.3




Category: refine

Data type: numb

Enumeration range: 0 -> infinity
Enumeration default: 0


   The number of constrained (non-refined or dependent) parameters
   in the least-squares process. These may be due to symmetry or any
   other constraint process (e.g. rigid-body refinement). See also
   _atom_site_constraints and _atom_site_refinement_flags. A general
   description of constraints may appear in _refine_special_details.

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