Crystallographic Information Framework

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Index

DDL dictionary version 2.1.6

Category ITEM_RANGE

Name:
'item_range'

Description:

   
     The range of permissible values of a data item.  When multiple
     ranges are specified they are interpreted sequentially 
     using a logical OR.  To specify that an item value may be
     equal to a boundary value,  specify an item range where the 
     maximum and mimimum values equal the boundary value.

Category groups:
    ddl_group
    item_group
Category keys:
    _item_range.name
    _item_range.minimum
    _item_range.maximum

Mandatory category: no


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.