Crystallographic Information Framework

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Index

Macromolecular dictionary (mmCIF) version 2.0.09

_refln_sys_abs.I_over_sigmaI

Name:
'_refln_sys_abs.I_over_sigmaI'

Definition:

   The ratio of _refln_sys_abs.I to _refln_sys_abs.sigmaI.  Used
   to evaluate whether a reflection that should be systematically
   absent according to the designated space group is in fact
   absent.

Type: float

Mandatory item: no

Alias:
_ebi_refln_sys_abs.I_over_sigma (ebi_extensions version 1.0)

Category: refln_sys_abs


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.