Core dictionary (coreCIF) version 2.3.1

_reflns_class_R_factor_

Definition:

   For each reflection class, the residual factors for all
   reflections, and for significantly intense reflections (see
   _reflns_threshold_expression), included in the refinement.
   The reflections also satisfy the resolution limits established by
   _reflns_class_d_res_high and _reflns_class_d_res_low.
   This is the conventional R factor.

       sum | F(obs) - F(calc) |
   R = ------------------------
             sum | F(obs) |

   F(obs)  = the observed structure-factor amplitudes
   F(calc) = the calculated structure-factor amplitudes

   and the sum is taken over the reflections of this class. See also
   _reflns_class_wR_factor_all definitions.

Appears in list containing _reflns_class_code

Type: numb

Category: reflns_class