Crystallographic Information Framework

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Index

Macromolecular dictionary (mmCIF) version 2.0.09

_refln_sys_abs.sigmaI

Name:
'_refln_sys_abs.sigmaI'

Definition:

   The standard uncertainty (estimated standard deviation) of
   _refln_sys_abs.I in arbitrary units.

Type: float

Mandatory item: no

Alias:
_ebi_refln_sys_abs.sigmaI (ebi_extensions version 1.0)

Related item: _refln_sys_abs.I (associated_value)

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.