Data Item _reflns.observed_criterion
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General 
- Item name
- _reflns.observed_criterion
- Category name
- reflns
- Attribute name
- observed_criterion
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 0.001 % of entries
Item Description
The criterion used to classify a reflection as 'observed'. This
criterion is usually expressed in terms of a sigma(I) or
sigma(F) threshold.
Item Example
>2sigma(I)
Data Type 
- Data type code
- text
- Data type detail
- text item types / multi-line text ...
- Primitive data type code
- char
- Regular expression
- [][ \n\t()_,.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*
Related Items 
| Related Item Name | Relation Type |
|---|---|
| _reflns.observed_criterion_sigma_F | alternate |
| _reflns.observed_criterion_sigma_I | alternate |
| _reflns.observed_criterion_I_min | alternate |
| _reflns.observed_criterion_I_max | alternate |
| _reflns.observed_criterion_F_min | alternate |
| _reflns.observed_criterion_F_max | alternate |
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _reflns_observed_criterion | cif_core.dic | 2.0.1 |