Data Item _reflns.pdbx_CC_half
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General 
- Item name
- _reflns.pdbx_CC_half
- Category name
- reflns
- Attribute name
- pdbx_CC_half
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 22.3 % of entries
Item Description
The Pearson's correlation coefficient expressed as a decimal value
between the average intensities from randomly selected
half-datasets.
Ref: Karplus & Diederichs (2012), Science 336, 1030-33
Data Type 
- Data type code
- float
- Data type detail
- float item types are the subset of numbers that are the floating numbers.
- Primitive data type code
- numb
- Regular expression
- -?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?
Allowed Boundary Conditions
| Minimum Value | Maximum Value |
|---|---|
| 0 | 1 |
Advisory Boundary Conditions
| Minimum Value | Maximum Value |
|---|---|
| 0.75 | 1.00 |