The STARANISO Server
Anisotropy of the Diffraction Limit
|SA_flag value||Point color||Meaning*|
|0 or MNF (missing)||Grey||Unobservable|
|2||Red or white||Unobserved|
|3||Orange through white||Observed|
*See the GLOSSARY for an explanation of the terminology used here.
Note that currently only values 1 and 3 are output.  This means that the uniqueify script (or other method) can again be used, this time on the output MTZ file from STARANISO.  It is then necessary to remove the reflections with missing SA_flag values (i.e. the missing reflections with only a test-set flag value outside the diffraction cut-off surface).  It is then straightforward to use the CCP4 SFTOOLS utility to remove these before attempting the use the file in refinement, for example:
|> read in.mtz|
|> select col SA_flag not absent|
|> write out.mtz|
Note that SFTOOLS confusingly calls missing observations 'ABSENT' but they are not absences!