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INTERNATIONAL TABLES for CRYSTALLOGRAPHY |
Volume G |
Definition and Exchange of Crystallographic Data |
Definition:
The value of sigma~a~ used in constructing the Luzzati plot for reflections classified as observed. Details of the estimation of sigma~a~ can be specified in _refine_analyze.Luzzati_sigma_a_obs_details. Ref: Luzzati, V. (1952). Traitement statistique des erreurs dans la determination des structures cristallines. Acta Cryst. 5, 802-810.
Type: float
Mandatory item: no
Category: refine_analyze
Copyright © 2005 International Union of Crystallography