Hi Frank,

could you please be more specific, and give examples - the more the better? 
That would help enormously in debugging. Information required is cell, 
spacegroup, and which reflection(s) (as h,k,l triples) is/are missing. 

best,

Kay


On Thu, 5 Apr 2018 11:52:37 +0100, Frank von Delft 
<frank.vonde...@sgc.ox.ac.uk> wrote:

>Hello - can anybody shed light on this mystery:
>
>We need (for PanDDA analysis) a lot of datasets each to have the 
>complete set of low resolution indices, whether measured or not. (Refmac 
>adds the estimates as DFc, which is crucial when comparing maps.)
>
>In ccp4, there are two obvious ways to get these indices complete:
>
>  * uniqueify
>  * CAD using the keyword "RESOLUTION FILE 1 999 <highres>" (999 is the
>    low resolution limit).
>
>Mystifyingly, in ~1% of datasets, one or the other route misses one or 
>two indices.  Our work-around is to go belt-and-braces and run both for 
>each dataset.
>
>
>It does however remain a bug.  Does anybody have any idea what's 
>happening?  We can send example datasets to any volunteers who want to 
>fiddle with it.
>
>phx
>
>
>

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