[phenixbb] A couple of questions regarding twinning

Owen Pornillos owen at scripps.edu
Thu Jun 3 07:32:27 PDT 2010

On a related note, how is the R factor calculated with twinned  
structures (i.e., how is Fcalc determined for the purposes of R factor  



On Jun 3, 2010, at 10:27 AM, Nathaniel Echols wrote:

> On Thu, Jun 3, 2010 at 6:52 AM, Pietro Roversi <pietro.roversi at path.ox.ac.uk 
> > wrote:
> (see attached file) but only the last one seems to be used.
> Do I guess correctly that there is only provision for two domains
> adn therefore the last twinning definition overrides any
> previously defined one?
> Correct.
> If so, is there a way of specifying and using multiple
> twinning domains/operators?
> Currently phenix.refine is limited to a single twin operator.
> -Nat
> <ATT00001..txt>

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