**Definition:**

For each reflection class, the weighted residual factors for all reflections included in the refinement. The reflections also satisfy the resolution limits established by _reflns_class_d_res_high and _reflns_class_d_res_low. ( sum w [ Y(obs) - Y(calc) ]^2^ )^1/2^ wR = ( ------------------------------ ) ( sum w Y(obs)^2^ ) Y(obs) = the observed amplitudes specified by _refine_ls_structure_factor_coef Y(calc) = the calculated amplitudes specified by _refine_ls_structure_factor_coef w = the least-squares weights and the sum is taken over the reflections of this class. See also _reflns_class_R_factor_ definitions.

Appears in list containing _reflns_class_code

The permitted range is 0.0 -> infinity

**Type:** numb

**Category:** reflns_class

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