Data Item _reflns_shell.number_unique_obs
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General 
- Item name
- _reflns_shell.number_unique_obs
- Category name
- reflns_shell
- Attribute name
- number_unique_obs
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 27.7 % of entries
Item Description
The total number of measured reflections classified as 'observed'
(see _reflns.observed_criterion) which are symmetry-unique
after merging for this shell.
Data Type 
- Data type code
- int
- Data type detail
- int item types are the subset of numbers that are the negative or positive integers.
- Primitive data type code
- numb
- Regular expression
- -?[0-9]+
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _reflns_shell_number_unique_obs | cif_core.dic | 2.0.1 |