| Allowed Value | Details | 
|---|---|
| - | systematically absent reflection | 
| < |                                      satisfies _refine.ls_d_res_high satisfies _refine.ls_d_res_low unobserved by _reflns.observed_criterion not flagged as systematically absent not flagged as unreliable  | 
| f |                                      satisfies _refine.ls_d_res_high satisfies _refine.ls_d_res_low observed by _reflns.observed_criterion not flagged as systematically absent not flagged as unreliable excluded from refinement so as to be included in calculation of "free" R factor  | 
| h | does not satisfy _refine.ls_d_res_high | 
| l | does not satisfy _refine.ls_d_res_low | 
| o |                                      satisfies _refine.ls_d_res_high satisfies _refine.ls_d_res_low observed by _reflns.observed_criterion not flagged as systematically absent not flagged as unreliable  | 
| x | unreliable measurement -- not used | 
| Allowed Value | Details | 
|---|---|
| - | systematically absent reflection | 
| < |                                      satisfies _refine.ls_d_res_high satisfies _refine.ls_d_res_low unobserved by _reflns.observed_criterion not flagged as systematically absent not flagged as unreliable  | 
| f |                                      satisfies _refine.ls_d_res_high satisfies _refine.ls_d_res_low observed by _reflns.observed_criterion not flagged as systematically absent not flagged as unreliable excluded from refinement so as to be included in calculation of "free" R factor  | 
| h | does not satisfy _refine.ls_d_res_high | 
| l | does not satisfy _refine.ls_d_res_low | 
| o |                                      satisfies _refine.ls_d_res_high satisfies _refine.ls_d_res_low observed by _reflns.observed_criterion not flagged as systematically absent not flagged as unreliable  | 
| x | unreliable measurement -- not used |