Data Item _phasing_MIR_der.power_centric

General

Item name
_phasing_MIR_der.power_centric
Category name
phasing_MIR_der
Attribute name
power_centric
Required in PDB entries
no
Used in current PDB entries
Yes, in about 0.01 % of entries

Item Description

The mean phasing power P for centric reflections for this derivative. sum|Fhcalc2| P = (----------------------------)1/2 sum|Fphobs - Fphcalc|2 Fphobs = the observed structure-factor amplitude of the derivative Fphcalc = the calculated structure-factor amplitude of the derivative Fhcalc = the calculated structure-factor amplitude from the heavy-atom model sum is taken over the specified reflections

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]+)?

Allowed Boundary Conditions

Minimum Value Maximum Value
0.0

+∞