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Re: [ccp4bb] differences between Rsym and Rmerge
 

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CCP4bb <-- 2008 <-- January 2008 <-- 18 January 2008
Previous message:
Subject: Re: differences between Rsym and Rmerge
From: Dirk Kostrewa kostrewa {- at -} LMB {- dot -} UNI-MUENCHEN {- dot -} DE
Date: 2008-01-18 		Next message:
Subject: Re: differences between Rsym and Rmerge
From: "Manfred S {- dot -} Weiss" msweiss {- at -} EMBL-HAMBURG {- dot -} DE
Date: 2008-01-18


Subject: Re: differences between Rsym and Rmerge
From: "R {- dot -} M {- dot -} Garavito" garavito {- at -} MSU {- dot -} EDU
Date: 2008-01-18
Kay,

I beg to differ, but only in a pedantic way. Historically, Rsym
would refer to the agreement in symmetry-related reflections within a
single data set and Rmerge would be the agreement between 2 or more
data sets that were merged. This was the way we did it back in the
"old day" of precession photography and early oscillation
photography. While the terms seem synonymous today, the recent
thread "[ccp4bb] combine incomplete data sets" illustrates where such
a distinction is still relevant, where the "merging" is between data
collected under different experimental conditions (i.e., a different
crystal in a different orientation).

Michael

****************************************************************
R. Michael Garavito, Ph.D.
Professor of Biochemistry & Molecular Biology
513 Biochemistry Bldg.
Michigan State University
East Lansing, MI 48824-1319
Office: (517) 355-9724 Lab: (517) 353-9125
FAX: (517) 353-9334 Email: garavito@msu.edu
****************************************************************


On Jan 18, 2008, at 10:15 AM, Kay Diederichs wrote:

> Salameh, Mohd A., Ph.D. schrieb:
>> Hi everybody!
>> I will appreciate it if anybody can clarify to me the differences
>> between Rmerge and Rsym. Many thanks, M
>
> there is no difference - unfortunately there are two words for the
> same thing. "Rmerge" currently appears to be more in fashion.
>
> just my 2 cents,
>
> Kay
> --
> Kay Diederichs http://strucbio.biologie.uni-konstanz.de
> email: Kay.Diederichs@uni-konstanz.de Tel +49 7531 88 4049 Fax 3183
> Fachbereich Biologie, Universität Konstanz, Box M647, D-78457 Konstanz


CCP4bb navigation

CCP4bb <-- 2008 <-- January 2008 <-- 18 January 2008
Previous message:
Subject: Re: differences between Rsym and Rmerge
From: Dirk Kostrewa kostrewa {- at -} LMB {- dot -} UNI-MUENCHEN {- dot -} DE
Date: 2008-01-18 		Next message:
Subject: Re: differences between Rsym and Rmerge
From: "Manfred S {- dot -} Weiss" msweiss {- at -} EMBL-HAMBURG {- dot -} DE
Date: 2008-01-18


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