Crystallographic Information Framework

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ATTRIBUTES > DICTIONARY > DICTIONARY_VALID

Index

DDLm dictionary version 4.1.0

_dictionary_valid.option

Name:
_dictionary_valid.option

Definition:

   
    Option codes for applicability of attributes in definitions. Attributes
    not listed as 'Prohibited' for a given scope are allowed in that scope.

Type: Code


The data value must be one of the following:


Mandatory 		Attribute must be present in definition frame.

Recommended 		Attribute is usually in definition frame.

Prohibited 		Attribute must not be used in definition frame.

Enumeration default: Recommended

Category:
dictionary_valid


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.