Look at

CCP4 v7.0 Program Documentation

reindexing

Yes PG 321 has two indexing options..

i.e. reindex (h,k,l) to (k,h,-l) which is equivalent here to reindexing (h,k,l) to (-h,-k,l).

On 29 March 2018 at 21:26, Gihan Ketawala <[log in to unmask]> wrote:

Hi,
Can the point group 321 show indexing ambiguities? if not since I'm dealing with non-anomalous dataset can I use 3m1 instead?

Thank you,
Best,
Gihan