| DRAFT DICTIONARY CBF/imgCIF Extensions Dictionary | Draft version 1.5 for comment | 
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Definition:
       Identifies the direction in which this array index changes.
Type: code
Mandatory item: yes
| increasing | Indicates the index changes from 1 to the maximum dimension. | 
| decreasing | Indicates the index changes from the maximum dimension to 1. | 
Category: array_structure_list
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