Data Item _reflns_shell.meanI_over_sigI_obs

General

Item name
_reflns_shell.meanI_over_sigI_obs
Category name
reflns_shell
Attribute name
meanI_over_sigI_obs
Required in PDB entries
no
Used in current PDB entries
Yes, in about 51.9 % of entries

Item Description

The ratio of the mean of the intensities of the reflections classified as 'observed' (see _reflns.observed_criterion) in this shell to the mean of the standard uncertainties of the intensities of the 'observed' reflections in this shell.

Additional Descriptive Information for Depositors

 For this resolution shell, the average I/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]+)?

Advisory Boundary Conditions

Minimum Value Maximum Value
0.05 20

Aliases

Alias Item Name Dictionary Name Dictionary Version
_reflns_shell_meanI_over_sigI_obs cif_core.dic 2.0.1