Data Item _diffrn_reflns.pdbx_observed_criterion

General

Item name
_diffrn_reflns.pdbx_observed_criterion
Category name
diffrn_reflns
Attribute name
pdbx_observed_criterion
Required in PDB entries
no
Used in currrent PDB entries
No

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.

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]+)?