![[CIF logo]](https://www.iucr.org/__data/assets/image/0003/125499/CIF_v2.5.jpg)
Protein Data Bank exchange dictionary (pdbx) version 1.0521
_refine.pdbx_pd_Fsqrd_R_factor
Name:'_refine.pdbx_pd_Fsqrd_R_factor'
Definition:
Residual factor R for reflections that satisfy the resolution limits established by _refine.ls_d_res_high and _refine.ls_d_res_low and the observation limit established by _reflns.observed_criterion. sum|F~obs~**2 - F~calc~**2| R = --------------------- sum|F~obs~**2| F~obs~ = the observed structure-factor amplitudes F~calc~ = the calculated structure-factor amplitudes sum is taken over the specified reflections
Type: float
Mandatory item: no
The permitted range is [0.0, infinity)
Category: refine