Data Item _refine_ls_shell.R_factor_obs

General

Item name
_refine_ls_shell.R_factor_obs
Category name
refine_ls_shell
Attribute name
R_factor_obs
Required in PDB entries
no
Used in current PDB entries
Yes, in about 0.003 % of entries

Item Description

Residual factor R for reflections that satisfy the resolution limits established by _refine_ls_shell.d_res_high and _refine_ls_shell.d_res_low and the observation criterion established by _reflns.observed_criterion. sum|Fobs - Fcalc| R = --------------------- sum|Fobs| Fobs = the observed structure-factor amplitudes Fcalc = the calculated structure-factor amplitudes 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

+∞