Data Item _reflns.observed_criterion_sigma_I

General

Item name
_reflns.observed_criterion_sigma_I
Category name
reflns
Attribute name
observed_criterion_sigma_I
Required in PDB entries
no
Used in current PDB entries
Yes, in about 33.9 % of entries

Item Description

The criterion used to classify a reflection as 'observed' expressed as a multiple of the value of sigma(I).

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]+)?