Data Item _refine.ls_number_reflns_R_free

General

Item name
_refine.ls_number_reflns_R_free
Category name
refine
Attribute name
ls_number_reflns_R_free
Required in PDB entries
no
Used in current PDB entries
Yes, in about 82.7 % of entries

Item Description

The number of reflections that satisfy the resolution limits established by _refine.ls_d_res_high and _refine.ls_d_res_low and the observation limit established by _reflns.observed_criterion, and that were used as the test reflections (i.e. were excluded from the refinement) when the refinement included the calculation of a 'free' R factor. Details of how reflections were assigned to the working and test sets are given in _reflns.R_free_details.

Additional Descriptive Information for Depositors

               The number of reflections that satisfy the resolution limits
               established by _refine.ls_d_res_high and _refine.ls_d_res_low
               and the observation limit established by
               _reflns.observed_criterion, and that were used as the test
               reflections (i.e. were excluded from the refinement) when the
               refinement included the calculation of a 'free' R factor.
               Details of how reflections were assigned to the working and
               test sets are given in _reflns.R_free_details.

Data Type

Data type code
int
Data type detail
int item types are the subset of numbers that are the negative or positive integers.
Primitive data type code
numb
Regular expression
[+-]?[0-9]+

Allowed Boundary Conditions

Minimum Value Maximum Value
0

+∞

Advisory Boundary Conditions

Minimum Value Maximum Value
40 16000