[phenixbb] Geometry Restraints - Anisotropic truncation

Terwilliger, Thomas C terwilliger at lanl.gov
Thu May 3 08:24:57 PDT 2012

Hi Kendall,
Yes, I think you could use this kind of approach to make overall decisions of any kind, including those you suggest. I would not use Rsleep for anything at all, other than calculating a final number.   I would use a fixed Rfree set (which could be a subset of the total free set or the whole set) for all such decision making. If a lot of such decisions are made with Rfree...then yes it would be good to have an Rsleep to make sure that everything is ok.
All the best,
Tom T

From: Kendall Nettles [knettles at scripps.edu]
Sent: Thursday, May 03, 2012 9:05 AM
To: Terwilliger, Thomas C; PHENIX user mailing list
Subject: Fwd: [phenixbb] Geometry Restraints - Anisotropic truncation

Hi Tom,
Do you think something like this could be used during refinement to identify the "best" resolution limits? If you have an Rsleep set would Rfree be sufficient for this? I imagine  collecting data with a ring of noise and then let the optimal resolution be determined during refinement. My understanding of this is that the modern refinement algorithms can handle some noise in the reflections, but maybe this could be a way to optimize how much signal is needed to contribute in a positive fashion?

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