Yes, that's a good point--you can't really discredit Rmerge (it's just
a mathematical expression, after all, which must be translated vis a
vis redundancy), but you can show that the other R's are pleasanter
ways to represent the data.

Jacob

On Tue, Dec 6, 2011 at 3:02 PM, Anastassis Perrakis <a.perra...@nki.nl> wrote:
> Also
>
> Nat Struct Biol. 1997 Apr;4(4):269-75.
> Improved R-factors for diffraction data analysis in macromolecular 
> crystallography.
> Diederichs K, Karplus PA.
>
> But none of these are in any way 'discrediting' Rmerge, they are just 
> proposing more statistically sound alternatives. That is not the same ...
>
> A.
>
>
> On 6 Dec 2011, at 21:44, Ed Pozharski wrote:
>
>> On Tue, 2011-12-06 at 13:43 -0600, Jacob Keller wrote:
>>> The question is: "is there a reference in which Rmerge has been
>>> thoroughly, clearly, and authoritatively discredited as a data
>>> evaluation metric in the favor of Rmeas, Rpim, etc., and if so, what
>>> is that reference?"
>>>
>>
>> Aren't these sufficient?
>>
>> Manfred Weiss & Rolf Hilgenfeld, "On the use of the merging R factor as
>> a quality indicator for X-ray data", J.Appl.Cryst. 30, 203-205 (1997)
>>
>> Manfred Weiss, "Global Indicators of X-ray data quality" J.Appl.Cryst.
>> 34, 130-135 (2001)
>>
>> --
>> Oh, suddenly throwing a giraffe into a volcano to make water is crazy?
>>                                                Julian, King of Lemurs



-- 
*******************************************
Jacob Pearson Keller
Northwestern University
Medical Scientist Training Program
email: j-kell...@northwestern.edu
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