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Item _refine_ls_shell.R_factor_obs

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|F~obs~ - F~calc~|
               R = ---------------------
                        sum|F~obs~|

               F~obs~  = the observed structure-factor amplitudes
               F~calc~ = the calculated structure-factor amplitudes

               sum is taken over the specified reflections