Data Item _reflns.pdbx_CC_half

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