Data Item _pdbx_diffrn_reflns_shell.chi_squared

General

Item name
_pdbx_diffrn_reflns_shell.chi_squared
Category name
pdbx_diffrn_reflns_shell
Attribute name
chi_squared
Required in PDB entries
no
Used in current PDB entries
Yes, in about 0.7 % of entries

Item Description

The overall Chi-squared statistic for the resolution shell.

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]+)?