Data Item _reflns_shell.pdbx_R_split

General

Item name
_reflns_shell.pdbx_R_split
Category name
reflns_shell
Attribute name
pdbx_R_split
Required in PDB entries
no
Used in current PDB entries
Yes, in about 0.006 % of entries

Item Description

R split measures the agreement between the sets of intensities created by merging odd- and even-numbered images from the data within the resolution shell. Ref: T. A. White, R. A. Kirian, A. V. Martin, A. Aquila, K. Nass, A. Barty and H. N. Chapman (2012), J. Appl. Cryst. 45, 335-341

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

+∞

Advisory Boundary Conditions

Minimum Value Maximum Value
0.01 3.2