Re: [phenixbb] Are sigma cutoffs for R-free reflections cheating?

Pavel,

Reference, please -:) "Rather obvious" doesn't count for me -:)

You are essentially asking for proof that all the experimental data must be included while fitting theoretical model to it. Among the "weak reflections", roughly half will have negative intensities. If you plan to exclude that half, the burden of proof is on you. Excluding weak reflections will likely improve R-factors. That, of course, does not mean improved model. Cheers, Ed. -- Ed Pozharski University of Maryland - Baltimore