Data Item _refln.pdbx_anom_difference_sigma

General

Item name
_refln.pdbx_anom_difference_sigma
Category name
refln
Attribute name
pdbx_anom_difference_sigma
Required in PDB entries
no
Used in current PDB entries
Yes, in about 0.001 % of entries

Item Description

The standard deviation of the amplitude difference of the Friedel pair, D(hkl) = F(hkl) - F(-h-k-l).

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]+)?