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Re: [ccp4bb]: Twinning/Merging

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>[... snip ...]
>>  ... For weak crystals, collected with in-house
>>  instrumentation, 16% Rmerge is not uncommon. Best of all, tons of
>I disagree.  One should be able to expose longer in-house to get the
>required counting statistics, so that Rmerge is lower.

I agree and disagree. The illustrated case is indicative of 
insufficient counting statistics. I didn't say that one cannot get a 
good dataset, all I said is that the one described in the original 
email is not a particular good one.

Mischa Machius, PhD
Assistant Professor
University of Texas Southwestern Medical Center
Department of Biochemistry
5323 Harry Hines Blvd.                                Tel: +1 214 648 9760
L4.250                                                Fax: +1 214 648 8954
Dallas, TX 75390-9038, U.S.A.     Email: Mischa.Machius@UTSouthwestern.edu