Macromolecular dictionary (mmCIF) version 2.0.09
The residual [sum|avdel(I)| / sum|av(I)|] for symmetry-equivalent reflections used to calculate the average intensity av(I). The avdel(I) term is the average absolute difference between av(I) and the individual symmetry-equivalent intensities.
Mandatory item: noAlias:
_diffrn_reflns_av_R_equivalents (cif_core.dic version 2.0.1)
The permitted range is [0.0, infinity)