[phenixbb] Refinement versus intensities?

Pavel Afonine pafonine at lbl.gov
Wed Mar 28 07:21:42 PDT 2007

Hi Ulrich,

phenix.refine refines only against Fs. We don't have intensity based 
refinement targets in phenix.refine. If your input file has Is, it will 
convert them automatically into Fs (to make sure that it actually did 
it, please look for corresponding message lines in log-file).


Ulrich Baumann wrote:
> Dear Phenix,
> I came across the following: my .mtz reflection file contains columns IMEAN
> SIGIMEAN F SIGF. phenix.refine picks the IMEAN SIGIMEAN columns (column types
> are properly assigned, by the way) -- does it per default refine against
> intensities, e.g. like SHELX? This would probably mean that we better should
> feed reflection files before TRUNCATE or similar programs, right?
> Thank you very much,
> Ulrich
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