Hi Stephen, > R32 > H32 > R32 :H
Correct. These are all hexagonal setting. As far as I know, the hexagonal setting of R32 (R32:H) is the first one that comes up in the ITvA as is listed a R32. The rhombohedral/primitive setting of R32 (R32:R) comes second in the ITvA, I guess the first setting takes precedence. H32 is a pdb/ccp4ism. In my cctbx-skewed view, it looks like this: R32 == R32:H (== H32; not supported by the cctbx) R32:R is the primitive setting of R32:H Appending the setting to the space group makes life easier (no ambiguities) and you can do more funky stuff if one has the stomach/need to do so [like "P212121 (a+b,a-b,c)" ]. HTHP
