[phenixbb] Resolution cutoffs. Always debated?

[Francis E Reyes]

I need to put this in front of (this) crystallographic community.


What are the criteria for cutting a resolution for data reduction ?

Rmerge, I/sig, mean I/sig, completeness... more?

I once believed that I/Sig (not averaged) greater than 2 was the  
cutoff, but I've read online (particularly http://www.mail-archive.com/ccp4bb@dl.ac.uk/msg02576.html) 
  that this is no longer the case because of maximum likelihood. I  
would love to know why this is the case as well as poll the community  
on how they cut off their data.

Thanks

FR


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Francis Reyes M.Sc.
215 UCB
University of Colorado at Boulder

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