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International
Tables for Crystallography Volume G Definition and exchange of crystallographic data Edited by J. R. Hester and B. McMahon © International Union of Crystallography 2026 |
International Tables for Crystallography (2026). Vol. G. Early view chapter
https://doi.org/10.1107/97809553602060001011 Chapter 4.2 Core dictionary (coreCIF) |
Core dictionary version 3.3.0
_refine_ls.weighting_scheme
Name:_refine_ls.weighting_scheme
Aliases:
_refine_ls_weighting_scheme
_refine.ls_weighting_scheme
Definition:
General description of the weighting scheme used in the least-squares
refinement. An enumerated code should be contained in this description.
Type: Text
The data value must be one of the following:
|
sigma | Based on measured s.u.'s. |
|
unit | Unit or no weights applied. |
|
calc | Calculated weights applied. |
Category:
refine_ls
