Data Item _refine.correlation_coeff_Fo_to_Fc

General

Item name
_refine.correlation_coeff_Fo_to_Fc
Category name
refine
Attribute name
correlation_coeff_Fo_to_Fc
Required in PDB entries
no
Used in current PDB entries
Yes, in about 39.4 % of entries

Item Description

The correlation coefficient between the observed and calculated structure factors for reflections included in the refinement. The correlation coefficient is scale-independent and gives an idea of the quality of the refined model. sumi(Foi Fci - <Fo><Fc>) Rcorr = ------------------------------------------------------------ SQRT{sumi(Foi)2-<Fo>2} SQRT{sumi(Fci)2-<Fc>2} Fo = observed structure factors Fc = calculated structure factors <> denotes average value summation is over reflections included in the refinement

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
0.8 1
0 1