Re: [ccp4bb] AW: [ccp4bb] AW: [ccp4bb] (R)MS

2021-05-29 Thread Ethan A Merritt
t of Chemistry and Molecular Biology, University of Gothenburg > Box 462, 40530 Göteborg, Sweden > Tel: +46-31-786-3959 / M: +46-70-912-3309 / Fax: +46-31-786-3910 > Web: http://katonalab.eu, Email: gergely.kat...@gu.se > > From: CCP4 bulletin board On Behalf Of Hughes, > Jonathan >

Re: [ccp4bb] AW: [ccp4bb] AW: [ccp4bb] (R)MS

2021-05-29 Thread Gergely Katona
Behalf Of Hughes, Jonathan Sent: 28 May, 2021 14:49 To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] AW: [ccp4bb] AW: [ccp4bb] AW: [ccp4bb] (R)MS hi ian, yes, that aspect was in my mind, a bit, but i wanted to keep it simple. my point wasn't really how the "uncertainty" parameter is derived

[ccp4bb] AW: [ccp4bb] AW: [ccp4bb] AW: [ccp4bb] (R)MS

2021-05-28 Thread Hughes, Jonathan
s become exaggerated – which is another word for "misrepresented". cheers j Von: Ian Tickle Gesendet: Freitag, 28. Mai 2021 12:10 An: Hughes, Jonathan Cc: CCP4BB@JISCMAIL.AC.UK Betreff: Re: [ccp4bb] AW: [ccp4bb] AW: [ccp4bb] (R)MS Hi Jonathan On Thu, 27 May 2021 at 18:34, Hughes, Jo

Re: [ccp4bb] AW: [ccp4bb] AW: [ccp4bb] (R)MS

2021-05-28 Thread Ian Tickle
Hi Jonathan On Thu, 27 May 2021 at 18:34, Hughes, Jonathan < jon.hug...@bot3.bio.uni-giessen.de> wrote: "B = 8π2 where u is the r.m.s. displacement of a scattering center, and <...> denotes time averaging" Neither of those statements is necessarily correct: u is the _instantaneous_ displacemen

[ccp4bb] AW: [ccp4bb] AW: [ccp4bb] (R)MS

2021-05-27 Thread Hughes, Jonathan
hey gerald, yes, and surely it would be better than a u³ -based parameter (if it's the dimensionality arising from a symmetric covariance matrix that's the problem). actually, the guy on the beach was a greek-australian ex-cell biologist who now works for a bank helping it to rake in money from f

[ccp4bb] AW: [ccp4bb] AW: [ccp4bb] (R)MS

2021-05-27 Thread Hughes, Jonathan
hi gerard, yes, but that's like saying that the height of a human being is 1.8 m +/- 0.04 m². and if (thanks to robert!*) "B = 8π2 where u is the r.m.s. displacement of a scattering center, and <...> denotes time averaging" it would seem to me that we would be able to interpret things MUCH mo