Data Item _refine.ls_number_reflns_R

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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 83.4 % 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

Data Item _refine.ls_number_reflns_R_free