Crystallographic Information Framework

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Index

Macromolecular dictionary (mmCIF) version 2.0.09

_refine.ls_weighting_scheme

Name:
'_refine.ls_weighting_scheme'

Definition:

   The weighting scheme applied in the least-squares process. The
   standard code may be followed by a description of the weight
   (but see _refine.ls_weighting_details for a preferred approach).

Type: ucode

Mandatory item: no

Alias:
_refine_ls_weighting_scheme (cif_core.dic version 2.0.1)
The data value must be one of the following:


sigma 		based on measured e.s.d.'s

unit 		unit or no weights applied

calc 		calculated weights applied

Category: refine


International Tables for Crystallography

Volume G: Definition and exchange of crystallographic data

First online edition (2006)

Edited by S. R. Hall and B. McMahon

An essential guide and reference to CIF for programmers, data managers handling crystal-structure information and practising crystallographers.